Click title to read one, or click date to read all below it.
08-13-07
Nice review, teajay, thanks! i just hope to be able to ... Krell_man
08-13-07
So is it worth the $$ going from mk. iv to the tube hyb ... Nickt
08-13-07
Nickt, i thought it was apparent in my review that i fe ... Teajay
08-13-07
Thanks. i heard the mk. iv and was very impressed alrea ... Nickt
08-15-07
Teajay, first, i would like to thank you for ope ... Branimir
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Branimir, it's good to hear from you, thanks for the kind words regarding my reviews on Accustic Arts digital gear.
If you got out of my review that the Tube Hybrid DAC is "warm" sounding then I failed at conveying it's overall sonic signature to you. As, I mentioned in the review I have never liked the Tube based DACS that I have auditioned because at best I find them "soft" sounding lacking resolution/details/dynamics and at worst I have found them to have a "euphonic/warmth" like older tube gear. The Tube Hydrid keeps all the virtues of the MK-4, but adds a liquidity with more natural timbres/image density which leads to more of a natural overall sonic signature.
So, I don't find the Tube Hybrid to be "warmer" sounding but more "natural" sounding to my ear's. I'll look forward to your experience after you audition it and were it ranks in your viewpoint of DACS.
Teajay 08-15-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Great review Teajay, I'm looking forward to hearing this in my system.
Now that you have had this for a while how warm does the unit get?
Does this unit get left on all the time as the MK-4 does?
What's the tube life?
Regarding your first initial listening experience right out of the box and now what type of sonic differences have you experienced?
Dev 08-16-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Dev, thanks for the nice words regarding my review. To answer your questions:
1) The DAC does not even become warm to the touch.
2) There is a tube stand-by option, the SS state stays on while the tube goes to sleep, but I just leave it totally on because, which answers your next question, even if left on all the time the type of tubes and how they are used still means you would not have to retube for at least 3 to 4 years. I just ordered a pair of NOS Amperex 12AX7WA that should raise the performance of the DAC another 10 to 20% compared with the stock tubes from China.
3) This DAC has all the virtues of the MK-4, and I know this is a very subjective way of explaining, and then adds a more natural/organic sense to the overall texture of the music. It just sounds more "lifelike" and real. Not, just smooth or euphonic, it still is detailed with great dynamics, but makes it easer to just relax and get into the music.
Teajay 08-16-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Thanks Teajay for the answers can't wait to get mine.
Wow! 10 - 20% raise in the performance just changing the tubes, that's huge. You really feel that there is going to be that much especially due to how and where these tubes are located within the dac design? This is going to be really interesting and I look forward to reading your out come, keep us posted.
Has there been much of a sonic change since you have gotten the unit, if so what?
I went onto the "AA" web site and noticed that they have now put up info. regarding this piece, very interesting design.
Thanks again.
Dev 08-16-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Dev, I'm not a "tube dude" at all, however I have now discussed with four tube mavens the differences between great NOS tubes and the best tubes coming from China and they all agree that regardless what the application is you should get a great improvement across the sonic board with changing the tubes. We shall see!
The major change would be it's just opening up more with greater dynamics so far. I have about 250 hours of playing time on it now, and just want to stay home and listen to music.
Teajay 08-17-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
I want to share that I have had in the AA DAC for about 30 hours a pair of NOS Amperex 1960's "Bugle Boy" tubes, replacing the stock tubes from China, and the results are trully amazing. More transparency, details, liquidity, and a bigger and more airy soundstage, just wonderful results and the tubes are still burning in!
I'll be recieving at the end of next week a matched pair of 60's NOS Telefunken's smooth plates and then will decide what sounds the best in my system.
So Dev, yes the performance of this DAC goes up a great degree with better tubes, and remember I was thrilled with the performance with the stock tubes.
Teajay 08-26-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Teajay good to hear that you are enjoying this piece.
How many tubes in total are there in this unit?
Dev 08-30-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Dev, the DAC uses two tubes, I just recieved the matched pair of smooth plate NOS Telefunkens, however I'm having so much pleasure listening to the DAC with the Amperex tubes I'm going to wait awhile before I try the Telefukens out. Have you arranged yet and audition of this DAC? I'll be very interested in what your experience will be.
Teajay 08-31-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Thanks Teajay, yes I have and I'm awaiting to get one.
Dev 08-31-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Teajay, have you tried your latest new tubes as of yet and if so what do you find the difference being.
Just curious, was there a reason why you choice these tubes?
Can you forward over where you got them, getting matched pairs from a reliable source is always nice to have and I'll need to get some.
I missed out getting a unit because I was out of town but I'm suppose to get one by week end, no demo's units available.
I bought a pair of PASS X600.5's and I'm really enjoying them with my Andra's, I prefer them over my McIntosh 501's.
I'm going to be able to get a pair of the XA160.5's to demo but I'm going to wait for a bit until I have the new Tube dac in my system for a bit, hope I have made the right choice. The MK4 is a reference piece that I really enjoy in my system.
I also read your review regarding the Flora pre., have you ever had a ARC REF3 or Supratek Sauv. (Cortese line stage)in your system to compare? I'm currently running all cables in balanced so to even demo this unit properly will be a task. Few reason; SE section's are not even broken-in along with I will have to then get a RCA cable and really should be the same as I'm use to which is Stealth Indra(with Stealth connectors, their latest version), as you know not cheap actually more than the Flora and it also needs to be broken-in. Just curious if it really is worth all the effort.
Dev 09-25-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Dev, I'll really be surprized if you are not quite delighted with Tube Hybrid DAC in comparsion with the MK4. I agree that the MK4 is still a great piece, however the Tube Hybrid is just that more "musical/natural" sonicly without giving up dynamics or microdetails.
I am enjoying the sound of my system so much I have not replaced yet the Amperex tubes with the Telefunkens. I do not have an extensive tube background, however as I researched the sonics of different tubes and talked to very knowledgeable tube guys it be came very clear to me that I did not want overly "lush/romantic" sounding tubes like Mullards, but tubes that would offer dynamics, extension, details, with maybe a touch of sweetness or warmth, hence the Amperex and the Telefunkens are supposed to be even more dynamic but a little "cooler" then the Amperex.
As far as were to get great tubes and deal with great gentleman, I recommend: Brent Jessee Recording & Supply, Inc.(Brent) 847-496-4546 or Vintage Tube Services,(Andy) 616-454-3467.
I'm a great Nelson Pass fan so I'm glad your enjoying your 600.5's. It would be interesting if you audition XA160.5s if you would like there sonics better in your system. I loved my X350.5 but thought the XA-100's were a step up in my system and made the change.
I have heard both the Ref 3 and the top level Supratek in other systems, but not in a home audition. I really still believe it would be worth the hassle, the single-ended vs xlr, for you to audition the Flora, it's really an amazing sounding linestage and offers world class performance for alot less money then other highly regarded linestages. I did not purchase the Flora for economic reasons, but just based on its superlative sonics compared to so many other linestages I had listened to.
Teajay 09-26-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Teajay, Thanks for the info.
Regarding the Pass, I demoed not in my own place but at a dealers 2- X-350.5's with Swan speakers including Esoteric PO-3 combo and Hovland 200 pre. In the same system I heard the XA-100.5's and preferred them. I had the 100's in my system and compared to the X-600.5's and preferred obviously what I have but a fair competitor would be the XA-160.5's in which I will do.
It's looking good, my Dac is at customs so I should have it for the weekend.
Dev 09-26-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Just wanted to share that I replaced the stock fuses in the Tube Hybrid DAC with Isoclean Power audio grade fuses. These fuses are quite a tweak, they significantly improved the overall sonic picture(transparency/dynamics/details/soundstaging)of the DAC.
I also finally put in my matched pair of NOS Telefunkens, instead of the NOS Amperex "Bugle Boy's". So far I find the Telefunkens seem to be more dynamic/transparent/detailed but are slightly less "sweet/warm" compared with the Amperexs. I like the way the DAC sounds with both sets of tubes, which are both quite better then the stock tubes from China, but have not decided which set of tubes I like more yet.
Teajay 10-01-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Well aren't you having fun, fuses and tube changing. Teajay I finally got my unit and all I can say is WOW! WOW!, your review says it all.
I don't think others really realize just how fantastic this unit is until they actually get one into their own system and they better be ready to pick-up their jaw from the floor.
I am looking forward to changing the tubes and fuses as you have but for now I'm just going to enjoy. I already picked up a match pair but will wait to install.
I exchanged my Supratek Sauv. line stage out of my system and put my ARC REF3 back in prior to putting in the Tube dac and defiantly preferred the REF3. but then I put the Tube dac in, I don't know if it's a synergy thing happening or what but I am just in awe with what I'm hearing.
Dev 10-02-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Dev, congratulations on your new AA Tube Hybrid DAC! It really is a terrific piece and I'm glad it lived up to what you were expecting. The MK4 is still a great DAC, however the Tube Hybrid goes to another sonic level.
I have come to a decision regarding which set of tubes I like more in the DAC. After another listening session with my dear friend Bob, who I refer to as the "Golden-eared" one we both came to the same conclusion, the Telefunkens offer power/dynamics/microdetails and finally unbelievable 3-D imaging in a very large soundstage which we both admired, but, he and I felt less "attached" in an emotional way to the music compared to the Ameperex Bugle Boys. The Telefunkens are not overly bright or etched sounding, however I think the word I would use to describe my experience of them in this DAC would be somewhat relentless and tonally cool, but boy on some types of music the balls to the wall dynamics and 3-D precise imaging was quite seductive, however the Bugle Boys for me sound more like real music with more natural timbres and an easy quality that allows you to relax into the music. Both tubes sound great in the DAC but different, and it really again comes down to personnal taste and system synergy.
Teajay 10-03-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Teajay, here are two more tubes for consideration that were recommended to me; NOS Telefunken cira 1962 with rib plate and BRIMAR B.V.A. from England.
What is the correct size of Isoclean fuses?, what are your thoughts of HiFi Fuses I'm sure either would be better than the stock fuses. Have you also changed the fuses in your Pass amps?
I am still restraining myself from changing the tubes in the dac for right now even though I can't wait to do so, instead I'm just absorbing the musical upgrade over my MK4 dac which is a wonderful piece.
Dev 10-04-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Dev, here's the information regarding the fuses:
Fuse holder 1A gets a 1A fuse. Fuse holder 102 gets a 1.6A. The arrows on the fuses face toward front faceplate. I have never tried HiFi fuses compared to the Isoclean's, so I don't know how they compare, but I do know that the Isoclean fuses are terrific in their effect sonicly. I will be putting them in my MG-20's, Flora, and XA-100's in the near future.
I have a hunch that the Telefunkens that you mention will have the same sonic signature as the one's I have and the other tube, Brimar, I have no idea regarding their sonics. In the context of my system I love how the Amperex Blue Boys help the DAC just produce beautiful music.
Would you share what your hearing in your own way what the Tube Hybrid offers that is different compared to the MK4? I find it interesting how people use different language to describe what they hear, so it would be great to hear your version regarding the DAC. Finally, when you get your NOS tubes and put them in, I think you will be amazed at how the performance improves, which is pretty terrific with the stock tubes already.
Teajay 10-04-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Thanks Teajay for the info. regarding the fuses and I will share my personal thoughts but in the near future as I want to let the unit break-in along with putting in some different tubes.
You really are great at writing reviews and after reading yours I don't really know what to add.
I had a friend over last night who has a very good ear and system and has heard my system many times as I have his, he could not believe the difference and said he thought my system was great before but now is just lost for words.
Dev 10-04-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Dev, was just curious about how its going with your DAC regarding overall satisfaction and if you did put different tubes in and if so what were the sonic results?
A friend was very interested in comparing his new Meitner CDP compared to the AA Tube Hybrid DAC on redbook. Well, lets just say the AA was way better in my system on that day. The Meitner sounded both "dry" and did not throw any were close the soundstage/air around players like the AA.
Teajay 10-29-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Teajay, well my unit was really just getting broken-in and I sold my Andra's but I was still really enjoying it. They are being replaced with a new pair of MBL 101E's which I'm awaiting to receive, should get them in about 2-3 weeks time. I did remove the Chinese tubes and put in the Brimar, very silky mid and highs voices to die for and scary real if you go to Andy's tube description describing the sound of these tubes is bang on. The experience was like wiping off a smear on glass that you are trying to see through, everything was just that much more focused. I really am enjoying this unit, one of the nicest pieces I have ever had.
I placed an order for the same tubes you have and waiting for their arrival to compare, thanks for the contact I placed my order with Andy.
I'm sure my system components, amp and pre might be changing down the road since I'm getting the 101's but I'm in no hurry and will be doing comparisons. I read some where you were at a friends and he has the MBL 6010D and you really enjoyed it.
Dev 11-02-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Just wanted to share that I just got through auditioning in the AA Tube Hybrid DAC the last of the great "three european sisters" tubes, the other two are the Telefunken smoothplates and the Amperex "Bugle Boys", the last "sister" being the Mullard longplate square getter 12AX7.
Well, the Mullards lived up to their sonic reputation, warm, lush, romantic, yet still offering clarity/transparency with a big open soundstage and air, but they are not as extented on the top and bottom compared with Amperex Bugle Boys and are to creamy for my sonic taste. Certain things like cymbals and brass instruments that should "sparkle" and have "aliveness" were just to soft in the context of my system. If someone is either enamored with the sound of type two DACS like the Zanden or SET setups they would love how the DAC sounds with the Mullards.
So, after sonicly dancing with these three famous NOS 12AX7's, I'm sticking with Amperex Bugle Boys that are just about sonicly in the middle of Telefunkens and Mullards and to my ear's make the Accustic Arts Tube Hybrid and my whole system sing closer to what real music sounds like to me.
Teajay 11-12-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
My last post stated that after trying Telefunkens and Mullards I came to the conclusion that the Amperex Bugle Boys offered the best of all sonic worlds when used in the Accustic Arts Tube Hybrid DAC.
Well, I just tried Amperex Bugle Boy 50's Long Plates, instead of my Amperex Bugle Boy 60's Short Plates and have got a new reference in tubes for the following reasons:
1)Greater transparency/clarity with more microdetails.
2)More air around players with a greater sense of 3D images in the soundstage.
3)More powerful dynamics and punch in the bottom end.
Yet, these Long Plates still keep the liquidity/easyness and warmth of timbres of the Short Plates with the above stated sonic improvements. I always find it amazing when you can get this rare combination of ease and resolution at the same time, which leads to a higher level of musical enjoyment.
Teajay 12-17-07
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
It's been a while since someone posted here. I tried the AA Hybrid Tube DAC this weekend, and I also was mightily impressed with it. I used my Emm as a transport and connected it with a digital Wireworld Gold Eclipse XLR. Had some functional issues, like it doesn't play SACD signals, only RB, and everytime I changed a CD the digital error lght came on and the unit started clicking loudly. Any experience like that? But the sonics were to die for, just like you described in your review. I haven't heard anything digital sound this analog, including the Accuphase P800/D801 combo I listened to yesterday at 3X retail. I know I raved abbout my Emm and thought it much better than any Accuphase, but this tops them all easily in my system. Intreresting reading about the tubes/fuse tuning too. Personally I'd rather have fuses not designed into the signal path, like my Darts, but the overal sound the the AA Tube DAC was very convincing.
Thanks Teajay for the interesting review.
Mtkhl567 03-03-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mtkhl567, in the context of your world class reference system, it's quite a compliment you are giving to the sonics of the AA Tube Hybrid DAC.
I have recently talked to someone who had recently listened to all the top rated digital front ends, Dcs, Esoteric, Metronome, Zanden and he still felt that the Accustic Arts Tube Hybrid was the best of the bunch. And to think all the other DACS retail for at least $15000.00 to $20000.00 more then the Tube Hybrid!
I also believe, please no disrespect on my part, that the Meitner transport is not one of the better sounding trnsports to mate with the Tube Hybrid DAC. A dear friend has the Meitner reference DAC and uses a CEC TL-0 for redbook because it sounds significantly better then the Meitner transport with his Meitner DAC. So, I believe you would get even a higher level of performance with a different transport. If you heard the DAC with the stock tubes you would be amazed at the sonics with the best NOS tubes that I discuss on this thread.
Teajay 03-03-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Thanks Teajay, I have no experience with expensive DACs, so I can only say what the AA machine did in my system. Which was pretty wonderful. It just was tonally so right, soundstage wise hugely improved. Listened to some more types of music last night, and just confirmed that it's not only with Jazz and Orchestral music, but also pop and rock, female voice.
I agree with you on the transport of the Emm, it's not a strength... did you know AA are coming out with a new transport this year? What do you think of their current transport?
Mtkhl567 03-04-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mtkhl567, I use the AA transport MK11 in my system and think its a great match with the DAC. I haved tried two other very good transports and did not hear enough of a sound difference to make the change. Yes, Accustic Arts is coming out sometime this year with their new reference level transport to match the Tube Hybrid DAC, I'll be auditioning for sure when it does come out.
Teajay 03-04-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mtkhl567 I agree with you the AA Tube Hybrid DAC is a marvelous piece and I suspect there isn't much being posted because anyone who happens to own one is just enjoying their library of music. As Teajay has mentioned changing the two tubes most defiantly improves a already supurb piece. Two areas I have also noticed differences are different transports and via digital connection.
Currently I have two Stealth Sextet digital cables, AES and BNC and there is most defiantly a difference. Using one the images are much more focused but at the same time gives up body and texture. Bass response on one lets you hear the most hidden inner detail notes while the other is more congested clouded over.
Teajay I believe you are using a Stealth Sextet digital cable also, what connection are you using? Have you directly compared using the same manufactures cable but different digital connection? You should because you will be in for a surprise as there most defiantly is a difference in my set-up any ways using the the Oracle as the transport. You mentioned in your post above that a friend had the CEC transport have you had a chance to hear it with your dac? That would be a real interesting piece and I would have interest in your thoughts.
Can you believe it I still have not got around to replacing the two fuses I'm just enjoying the piece so much and keep forgetting to do it, is there that much audio difference?
Dev 03-04-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi, Dev thanks for the information you left me regarding the Stealth Dream speaker wires, I hope to getting a pair to audition at the end of this week.
Now on to your questions:
1) I use the Stealth Sextet with BNC connections. I have never heard the XLR version in my system. Please share which cable produced which result when you ran the experiment.
2) I have not heard the most current CEC TL-ox with this DAC. Richard a fellow GON member who also owns the Tube Hybrid uses the CEC TL-ox and is enthralled with the results. He also has NOS Amperex Long Plates and the upgrarded fuses in his DAC.
3)Yes, the fuses make enough of a difference to make a difference to put them in.
Teajay 03-05-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Teajay your welcome, will be interesting to read your findings once you have tried the Dream speaker cables within your system.
Stealth Digital cables:
1)I will do a more detailed evaluation and post it, I have to say that I was a bit taken back and shocked at the same time when I removed one and installed the other and heard the differences, instantly you could hear the floor noise being substantially lower and everything just seemed to open up. Actually what happened was a couple of friends were over to hear the CAT's and I had one of the digital cables just sitting off to the side and was asked to install it so they could hear if there was a difference or not. You should get the XLR version (AES)digital connection to evaluate your self because there is most defiantly a difference, this could be easily heard in my system with my trans (Oracle) and dac (AA Tube Hybrid) combo.
Transports:
1)Your friend Richard what is his GON name?
2)What differences did you hear from your trans and his CEC, there is a substantial difference in cost.
3)Regarding the new AA trans. do you have any info. pertaining this unit that you care to share? Design differences, cost.
Tubes and fuses:
1)I will get the fuses.
2)The Long Plate tubes, I still have not been able to get a pair any thoughts where I can get some.
Dev 03-05-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Dev, Richard's Gon moniker is Hamburg. He went from a Levinson transport not a Accustic Arts to his CEC-TLOx in his system. When we talked regarding the differences it was across the board, soundstaging, dynamics, extension, liquidity, etc., and brought the overall sonics of his system to a higher level.
I have gotten no information yet regarding when AA will release their new transport or what they will be doing regarding the mechanics of it compared to the MKII transport.
Teajay 03-05-08
Review: Accustic Arts Reference Tube Hybrid DAC II
On the new transport I was told by the only German dealer that carries the whole AA line that the new transport really is only a special Cable Kit installation (from the US) that is easily installed on the current transport afterwards. No definite timing known just as yet.
Any of you have experience with the AA power strips and power cables? I was trying to compare to the PS Audio premier. I know not the same product, but on my amplification the AA strip was better than the premier.
Teajay, just like Moniker, it brought my whole RBCD playback to a higher level across the board. I preferred it much over SACD on my CDSA-SE player. Don't understand why there is so little discussion out there on this wonderful DAC.
Mtkhl567 03-06-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
actually,
i heard that the new drive 1 transport (mk2) is just the same, with the upgraded cable as described above.
however the all new reference transport(drive 2) will come out in april with world premier at "High End 2008" in Munich
also can anyone tell me how long the dac 2 takes to get fully burned in, as mine is still harsh compared to the reimyo dac.
Shahedk 03-14-08
Review: Accustic Arts Reference Tube Hybrid DAC II
I can confirm the new transport (drive 2) will come out at the Munich High-End show end of April. No pricing known yet.
I ordered two Aktiv 6 power strips with some of their power cables. These will probably burn in within a week or so, not sure about the DAC II, most electronic components take 100+ hours of playtime at least. Use a burn-in disc, that would accellerate the process.
Mtkhl567 03-29-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Last information about the new AA reference transport Drive 2 is that pricing wise it will be slightly above the DAC II, at least in Europe. This thing better be worth it at about twice the Drive 1 price!!! I'm starting to wonder about the AA value proposition here... as most of the excellent sound comes from D/A conversion IMO
Mtkhl567 04-19-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Now that the High End show in Munich is already on, are there any photos or writeup on the new Accustic Art Reference Transport? Does it really look the same as Drive2? For a price that some say is above Tube DAC2, hopes it looks big and massive like an Oracle transport ;-)
Hotbird 04-25-08
Munich HE Show Accustic Arts setup
Just manage to find a picture of an Accustic Arts setup at the Munich show. I wonder is that a new Reference transport at the top of the rack? It looks like the lid has changed to a clamping mechanism from a sliding one???
Accustic Arts with Monitor Audio(yucks)
Hotbird 04-29-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Thank's Hotbird for posting the link to the AA room. Can't really tell, other than it doesn't look like a big ole Oracle transport ... :-)
Mtkhl567 05-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
I was hoping that 6moons post a picture of it on their review of their show (11pages) but they stopped short after posting 40% of their photos (they said they still had 60% left). The rest of the other websites, Enjoythemusic and soundstage add together do not even have as much photos as 6moons, such a shame.
Hotbird 05-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II
I have a picture and a technical description of the new AA reference transport Drive II. Send me a mail if you want it. It is indeed a top sliding mechanism, robust as they come. Retail price in Germany is EUR 7,000, that together with the Tube DAC II makes EUR 13,400 plus cables ... pricey combo!
Mtkhl567 05-05-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hello.
I received my AA Drive 1 mk2 SE and TubeDac2 today. These are my first impressions as I wrote them in my system's page on Audiogon:
"Accustic Arts combo is functioning. It really blows away my previous Metronome Technologie combo ! Even 'right out of the box' the AA gives a tremendous organic and 'analog' sound, without loosing detail or without loosing crispyness. Ofcourse the AA needs burning in, but right now all I can say is that it completely outperforms Metronome (which BTW after all is way overpriced). Compared to the AA combo, the Metronome sound is 'thin' and less involving, has less 'flesh around the bones'. I'm waiting for the AA digital XLR cable to arrive, which is especially made as ideal connection between the Drive 1 and TubeDac2. Will get back later on."
Mattheus 05-07-08
The new Reference Drive2 in Munich HE2008
Here's a picture I just found.
Enjoy
New Reference Drive 2 photo
Hotbird 05-08-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mattheus, congrats on your new toys! If you look at what has been posted on this thread regarding tube rolling in the Tube Hybrid DAC, replacing the stock 12AX7's with NOS tubes the performance will even go to a higher level that you are enjoying as the pieces are burning in. So let us know what's happening regarding the new XLR cable from AA and other fun details. Enjoy.
Teajay 05-08-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Teajay,
I will.
I also have a matched pair of Mullard cv4004 cryotubes which I used in the Metronome C1A DAC and who had a very big/positive impact on sound. But I will first enjoy the standard tubes (what brand are they?) before I start 'rolling' :-)
My brother in law came over and had a listen yesterday. His words to describe the sound of the AA are: 'it sounds just like a good turntable' ! Knowing he uses a VPI - Manley - Usher system, this means a lot.
It's as you describe: the combination of 'hyper'detail, realism and full analog sound really is amazing. My brother in law stated it this way: it's as if the AA does not have a charcteristic sound, but you only hear the music as it is recorded.
I have a question: is it necessary to have a cd in the drive when it is not playing?
Mattheus 05-08-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mattheus, unless AA did something radically different in the new transport there is no reason to leave a cd in it when you are not playing it. I never do, I just leave the puck/clamp off the spindle and close the top.
Do you have any idea if the new transport has a different puck/clamp compared to the MK11 drive as far as size or weight?
Teajay 05-09-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Teajay, here a link to a pic of the open Drive 2. Its in German though.
www.areadvd.de/lm/AV_Hardware/...
Regards
Mtkhl567 05-11-08
Review: Accustic Arts Reference Tube Hybrid DAC II
I noticed that the AA Tube DAC accepts a maximum input sampling rate of only 48kHz; I was surprised to see this, particularly for a DAC at this level. Do you know why they limit it to this? A lot of digital sources today upsample to 96kHz and beyond, which would be incompatible with the AA DAC unless the sampling rate of the source is reduced. Do they feel that there is no sonic advantage of accepting a higher sampling rate?
Smeyers 05-14-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
FWIW: My previous Metronome T1A transport had both 48 and 96 kHz switch. I did not hear any difference...
Mattheus 05-14-08
Review: Accustic Arts Reference Tube Hybrid DAC II
I'm still surprised that AA only accepts up to 48kHz. My Tact 2.2 XP can output up to 192kHz. I've noticed that some folks think they can hear a difference at the higher sampling rates; in any case I find it puzzling why AA has it limited as it seems to be de-rigeur among stand alone DACS these days.
Smeyers 05-15-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Smeyers, my EMMlabs samples upto 5.6Mhz, both CD and SACD, however the same CDs and SACDs I compared sounded better through the AA Tube DAC II, more analog, better imaging, better defined and clearer sound stage, more depth. All I'm saying is that you've got listen to a product and see past the statistics and techno babble. Ofcourse, the same product can sound different in differing systems.
Mtkhl567 05-15-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Mtkh, I wasn't really comparing sound quality between sampling rates; all I was wondering is why does AA not actually support higher input sampling rates. There are some digital sources that output a non-adjustable sampling rate higher than 48kHz, which then would not work at all with the AA DAC. It just seems odd to me that AA has decided not to support those data sources at all, even if they felt 48kHz sounds better, especially considering how expensive the DAC costs.
Smeyers 05-15-08
Review: Accustic Arts Reference Tube Hybrid DAC II
OK, I see what you mean. Yeah, any company's choice to limit their product specifications to best match their own transport, or even in the case of the Accuphase DC801 which only works with their own DP800 transport. Can't blame them for following this strategy. Well, if you're looking for a 32-bit DAC then Esoteric's D-05 is about the same price...
Mtkhl567 05-16-08
Review: Accustic Arts Reference Tube Hybrid DAC II
In the current issue of Sterophile (June 2008) there is a review of the Cabasse La Sphere speakers, which do a fair amount of digital processing. Analog signals are digitized at 48kHz which let to the Author's comment: "A lot of processing goes on within the Sphere system, and unless CD is your only source, 48kHz is a barely sufficient sampling rate. With the exception of vocal sibilants, this processing wasn't grossly audible per se, but it certainly affected the system's ability to sound real, as opposed to sounding really great."
I realize that the AA DAC is not digitizing analog sources, but it's not the first time that I heard the notion that 48kHz is barely sufficient, which leads me back to the original question.
Smeyers 05-16-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Understand, on the other hand I have a few very, very well recorded 16-bit 44.1Khz RBCDs that puts the majority of recordings, including most SACDs, out there to shame...
I think the sampling question is a relevant one, but it shouldn't be taken out of the context of the whole recording and reproduction chain, its IMHO a smaller part of the overall performance. Maybe in an all digital system its more important though, like what you mentioned above.
At least my CDSA DAC's ability to upsample to 5.6Mhz did not lead to a better musicality vs the AA Tube DAC II on the same music. Maybe I liked the tube coloring ... who knows
Just my 2 cents.
Mtkhl567 05-16-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Last week I replaced my AA Drive MK11 with a MBL 1521a transport. I was expecting a difference, but frankly was very surprized, happly so, with the significant improvement across the sonic landscape.
1 A larger soundstage with more air between the players.
2)A much greater ease/liquidity without lose of dynamics or slam.
3)Extension on the bottom end with more power and speed. I believe its the best bass I have ever had in my system.
4)Microdetails are more apparent but in a very natural way, I believe I'm hearing more because this transport has a much lower noise floor then the AA Drive MK11.
I would say the musical/enjoyment level using the MBL transport with the AA Reference Tube Hybrid DAC went up another 25% or 30% in my system. I still believe that the AA Tube Hybrid DAC is one of the best sounding digital pieces on the market today and when you factor in its cost compared to what it competes with sonicly, kinda of a bargain. I have no idea if the new AA reference transport will perform better/different then the MBL transport, but either way it shows two things; 1) Transports really can make a difference 2) How much more potential performance can be gotten out of this terrific DAC.
Teajay 05-19-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Teajay, what digital interconnect(s) are you using between the Transport and DAC and from the DAC to your pre? Have you experimented at all with this and are you using any isolation under both?
Mtkhl567 05-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Post OBO hotbird,
Differences between Accustic Arts Ref Drive2 and Drive Mk2
Drive Mk2 : CDM Pro 2 LF – drive module with cast metal frame and involved mechanical decoupling
Ref Drive2: CDM Pro 2 LF – drive module with heavy die cast metal frame and involved mechanical decoupling, embedded in a massive aluminium housing (subchassis-construction principle)
Drive Mk2 : Generously dimensioned magnetically shielded toroidal core transformer (75 VA)
Ref Drive2: Two generously dimensioned & magnetically shielded toroidal core transformer of premium quality (2 x 75VA)
Drive Mk 2: Optimum smoothing thanks to 45,000 µF power supply capacity
Ref Drive2: Very high power supply capacity (61,000 µF) for perfect power supply.
Drive Mk 2: Resonance minimising aluminium housing
Ref Drive2: Extremely stable, massive and resonance optimized housing, primarily made of 10mm aluminium plates, ultra stable and acoustically damped top load cover
Weight
Drive Mk 2: 15kg (35lbs)
Ref Drive2: 18kg (40libs)
Unique to Ref Drive2 only
1) Integrated, specially designed Accustic Arts™ line filter for perfect and extremely clean power supply (line filter switchable)
2) Polarity switch for correct phase of the mains voltage
Unique to Drive Mk2
Drawer with indirect blue lighting for Accustic Arts logo feature (lighting can be switched off)
Mtkhl567 05-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Mtkl567, here's the answers to your questions:
1) I use a Stealth Sextet BNC between the transport and DAC.
2) I use a Stealth Indra, single ended, between DAC and preamp.
3) I use a Townsend isolation platform under my transport, and have experiemented with different footers under the DAC and transport and have not discovered any great improvement regardless what product I have used.
Teajay 05-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Thansk TJ for your quick reply. I'm curious to know why you jumped on the MBL transport before seeing if the AA reference transport is something you'd consider. Don't get me wrong the MBL is magnificent stuff, but knowing that the AA reference transport was going to come out... I thought you might have waited to compare before committing yourself...
Mtkhl567 05-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
hello.
being in the same boat(AA tube dac, mg 20 speakers)
my next purchase might be the Lamm ref pre or the cary slp05
or the supratek pre's.
i also keep thinking about the kallista transport , anyone tried this combo?if the transport makes so much difference, then kallista and aa reference drive 2(can be had for $8500 shipped)should be compared as well as mbl 1621 transport.
Shahedk 05-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Shahedk, just be aware that the AA tube DAC II does not handle SACD source material or DVD-A, only redbook CD.
Mtkhl567 05-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mtkhl567, to be quite frank there was three reasons I chose to audition and then purchase the MBL transport:
1) I heard the reference MBL in a good friend's system and was quite impressed with what it did with his DAC, which sounds very much like AA Tube Hybrid DAC, and became very interested to audition the smaller brother in my system.
2) I was able to set up an audition of the MBL and thought it was absolutely the best sounding transport I have ever heard in my system. In the past I have either owned or auditioned such highly regarded pieces as the ML 31.5, CEC TL-1, Oracle reference, Accustic Arts Drive MK11 and the MBL was much better sonicly then all of them.
3) I was offered a great price that would be significantly less money then what the new AA reference transport would cost me.
Based on my experience with Accustic Arts digital gear I bet the new reference transport will be a great step forward over the Drive MK11, however will it out perform the MBL, that I'm not so sure of.
A final addressing Shahedk's interest regarding the Kallista transport. This line is no longer imported into the US because of a very high failure rate. My friend who has in his system the MBL reference transport at one time had the Kallista reference and believes the MBL is better sounding then the Kallista and is built to a higher standard then the Kallista.
Teajay 05-21-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
I hope that even if you already bought the MBL Transport, you will have the opportunity to compare it against Acoustic Arts Reference Drive2 when it becomes available in your vicinity. IMHO, looking at the new specs of the Ref Drive2, the performance of the new AA Reference Drive should be at least comparable to the MBL transport or even their top model the 1621. The only thing it lacks is a bigger clamp...maybe AA will introduce a clamp upgrade in future ;-)
Hotbird 05-21-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
i agree totally regarding the metronome,
i have heard this company has problems in failure rates.
In Hong kong , when i visit,i tend to see a few of them in second hand shops for around 100000 hkd(us 12500 approx) .
however metonome and aero audio have many issues iv heard of from these sellers.
The germans make more reliable electronics then the french, thats what many people i heard also believe. i have yet to hear about any failures from a burmester, mbl,aa ect.
one thing though, iv never been able to see the insides of any mbl transports, does anyone have this? what are they using in there?
Shahedk 05-21-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Wow, I recently heard the Metronome Kalista, and as impressive as it looks, the sound wasn't all that fantastic. The rest of the system didn't help and the room was a hotel room, so not completely fair assessment. However, they were quoting the new price at EUR 36000(!) or USD 57000(!!!) at todays FX rate. If on top of that there is a high defect rate... imagine what kind of damage you can to to your own wallet. Just goes to show that you really have to be careful in this hobby.
I'm going to try out the new AA reference transport/DAC soon, should be impressive.
Mtkhl567 05-22-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Mtkh1567 the Reference AA Transport looks interesting.
I have owned a few of the "AA" pieces and currently own the AA Hybrid Tube Dac which I truly am enjoying. I did own the Line Drive II Transport but found that it was not really offering the improvement that I was exspecting over the previous drive I was using so the search was on and I had the opportunity to demo the latest Oracle 2000 transport and a Kalista Reference transport. The "AA" transport was good but the two others mentioned most defiantly gave me more of what I was looking for, from the first song. I did find the Kalista superior but not by a large enough margin to pay the difference, suggested list price over $50K Wow! The Kalista Ref also did not play a few pieces of music that I had previously never had any issues with, this really disturbed me. A friend brought over his Forsell Transport and it was also really nice but again had issues with not playing pieces and then the seal for the lid just stopped sealing properly. I have heard from others that the Forsell when working properly is hard to beat but very sensitive and there are reliability issues.
I will say with the Oracle 2000 there is a substantial audio difference just swapping the Stealth digital cable from AES to BNC connection. I use Stealth's latest Sextet digital cable with their own connectors and have one in BNC-BNC and the other AES connection.
I own MBL 101E speakers so their Reference Transports 1621A and now the new Ref 1622 along with the one below 1521a spoken of in this thread here does have my interest but the list price of these are how much? The 1521 just alone list for more than $13K I believe which is substantially higher than my current Oracle 2000 so my expectations would be very high and so far just swapping the two different cables and tubes in the AA Dac make substantial sonic differences. The recently new MK2 CEC transport also has my interest but again the list price is double $18K+ and just slightly higher than than the MBL 1521a so again my expectations would be high.
Look forward to reading anyone's thoughts once they try the new AA Reference Transport and comparison against what???
Dev 05-26-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
I had made an error within my thread and not sure which one will be posted first but just wanted to make the correction, the MBL 1521a list for $10,950.00 not $13K so I just wanted to make the correction.
The MBL 1621 $24K and the MBL 1622 $27,500K Oracle 2000 is around $8K.
Dev 05-26-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Hi Dev, thanks for sharing your thoughts and experiences. I loved what the AA Hybrid Tube DAC II did in my system and after I've done my room tuning, its next on my list. With regard to their new Reference transport, it lists for EUR 7000 over here and is easily gotten with for a decent price. I'd have to believe that in terms of value and craftsmanship the new AA transport is up there with the DAC when compared to others. I'm a fan of Sergei (stealth) too, and I only use his hyperphone cable now but heard/read very good things about the Indra etc.
I won't get to try out the AA combo until later this summer though... and I am a bit partial about its inability to process DSD signals
Mtkhl567 05-27-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
teejay
where and for how much did you get the reference clamp for the mbl transport?
have you checked the inside of this transport,
as i have not been able to find any pictures of this.
thanks
Shahedk 05-29-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Shahedk, I was very lucky that dear friend and fellow audiophile had an extra reference clamp and sold it to me for what he had bought it for. The retail price is $600.00, he had obtained it for $300.00, don't know were, and that's what he charged me. By the way, it really makes the transport perform on a higher level compared to the standard clamp.
I never opened up the transport, so I can't help you out regarding the layout or parts that MBL uses in it besides the description on their website.
Teajay 05-30-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi guys,
I just replaced the stock tubes with cryo'd Mullard CV4004's. Quality of sound is even more pumped up: more 3D, warmer, full bodied voices and instruments, detailed sound. Recommended !
Renaat
Mattheus 06-03-08
Review: Accustic Arts Reference Tube Hybrid DAC II
I also have the Accustic Arts Tube DAC now. It reminds me of Lavry sonically. Btw, do you think the Tube DAC is sensitive to a variety of transports?
Chris
Dazzdax 06-17-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Chris, I answered your other thread without seeing this one posted by so I have my answer. What transport are you currently using?, have you changed the tubes as of yet? and if so what did you go with and what were your findings?
Great piece and will be hard to replace, to answer your question about transport. The answer would be yes! along with digital cables, not too sure about PC's as I have not got around to those comparisons. I'm currently using a Stealth Dream PC and the IC from AA Dac to pre is a balanced Stealth Indra latest version all with Stealth's connectors. Currently I'm comparing two of the most current Stealth Sextet digital cables, one being AES and the other BNC and the difference is very obvious. Now the problem arises which one do I prefer and why, well that answer is still to come.
Dev 06-17-08
Review: Accustic Arts Reference Tube Hybrid DAC II
I have compared Stealth sextet AES with BNC terminated both are latest version
the BNC ended is belong to my friend and my AES one is between AA Drive II
and AA DacII MKIV, Stealth cables both are very good performer BNC one is more solid,it has more tight bass and more dynamic,AES one has more weighty
and rounded bass and more textural midrange,BNC one has more sparkle on top frequency AES top spectrum more smooth,these are my observations in my system and the differencies are not big but very small margin.
As for the new AA transport I could not find any information about its price here in Europe does anybody know how much its retail price?
BTW one of my friend has an Audio Note transport and claims it is better than AA, has anyone tried Audio Note transport with AA dacs?
Ben
Ben 07-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Ben, FYI ... the AA reference transport retails for EUR 6990 in europe.
Mtkhl567 07-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Mtkhl,thanks for your information, wow its price nearly two times more expensive than AA drive1 MK2, so Audio Note CDT3 might be a good contender
with its cheaper price...
Ben 07-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Ben, if you want to compare Audio Note CDT3, you can only compare it with the lesser Drive1 Mk2, which is of similar pricing. The new Reference Drive is the Accustic Arts statement transport, with no-hold-pricing but yet is still less expensive than the MBL 1521 MSRP(2nd tier in MBL range, top is the 1621) which Teajay has just upgraded to. For an equitable comparison of transports at this level, one should compare the new Accustic Arts Reference Drive to the MBL 1521/1621 as firstly both are made in Germany (so share same quality of build) and secondly, are in the similar price bracket (though with MBL still commanding the higher premium)
If you check earlier threads in this review, there's already a comparison of differences between AA Drive1 Mk2 and the Reference Drive, to illustrate what you get for the price difference. There's also a referenced URL to MBL transport specifications to show that the AA's specs are as good as MBL's if not better in certain areas. So make sure you check those links to make an educated comparion between the two. Of course nothing's more accurate than listening to both side by side. But until the AA Reference Drive production units are already delivered to the distributors world-wide (my local dist. still's awaiting delivery), Reference Tube DAC2 owners can only wait with anxious expectations ;-)
Hotbird 07-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
There's a new German review of the Accustic Arts Reference Drive 2 and DAC 2 at
http://www.accusticarts.de/pages/en/reviews/imagehifi_2008_04.html
As it's not in pdf but screenshots, I cannot cut and paste to some language translators to get the gist of that review.
If someone knows german, would be keen to know what the review says in conclusion. Thanks in advance.
Hotbird 08-19-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Ok, here a translation from Dirk Sommer's review in Aprils Image HiFi:
Liked: how much room and dynamism the DAC II solution extracts from standard redbook CD (16bit/44.1khz).
Surprised: how incredibly high value of price to enjoyment ratio you get - even when you have to pay a hefty sum in absolute terms
Missing: the possibility to play at sample rates above 48Khz
To do: compare this dream combo against clearly more expensive components
So obviously he liked the sound of the AA reference combo a lot, but also clearly states its limitations. I loved the sound of the AA DACII as well, and for playback of RBCD its the best I've heard. That doesn't mean much though, as I have not heard a whole lot. My wish would be to be able to have 24/192 or DSD level detail and the wonderful sound of the DACII. Clearly this limitations lies in their unique 32bit DAC implementation. Maybe Steffen Schunk is working on that ...
Mtkhl567 08-19-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi Mtkhl567, I am actually already sold on the virtues of the Tube DACII, what I am wondering is what does that review actually says of their latest Reference Drive2 transport? Thanks again in advance.
Hotbird 08-19-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Hotbird, Mr Sommer compares the Drive II with the Wadia WT3200 (I don't know this piece at all) and says it is slightly better in portraying a realistic soundstage, provides a little more air around instruments. He stresses the difference is not very big though. So pretty much audiophile bla bla speak. He falls short of saying its the best combo he ever heard, but does praise its relative price/value ratio. He says the same about the DAC II vs his PS Audio DLIII. I'm surprised he is not able to articulate more, or better, the differences with his gear.
Mtkhl567 08-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Just read up on a Wadia WT3200, here's the link:
www.lampizator.eu/LAMPIZATOR/R...
Its basically a Marantz transport (Philips 960) from the early 1990s when CD first came out. I can't believe that Mr Sommers believes the Drive II only slightly better than his ancient transport. Same is probably true for his DAC. My regard for this reviewer has just gone down the drain...
Mtkhl567 08-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
My goodness, horrified to know that this reviewer Mr Sommers is comparing brand new SOTA digital equipment with his antique digital setup, namely his PS Audio DLIII and Wadia transport and then hear little differences. Guess I don't want to find out more of what he writes after this revelation,as it appears to me that this reviewer certainly do not have a setup with a resolution like Teajay's to do proper comparisons ;-)
Hotbird 08-20-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Just wanted to share that I recently listened to three very highly regarded digital front ends and the Accustic Arts Tube Hybrid really "hangs" sonically with these other reference level pieces. I'm not saying that the AA DAC was better, however I did not go back to the tube Hybrid with any sonic regrets at all. But here's the punch line the other digital pieces cost at least $8000.00 to $30000.00 more then the Accustic Arts DAC! So, I still believe that for what this DAC sells for and how it competes with hughly more expensive reference pieces that's it is still one of the great bargains in very high end digital front ends.
Teajay 08-22-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Well like Teajay, I have heard the AA Tube DAC2 and Drive Mk2 combo against Esoteric X01D2 with external Esoteric clocks combo, dCS Pucinni, emmLabs combo equipment that have combined prices many times the AA combo, and still preferred the AA Tube DAC2 stuff. Thus for those who wants to save big money but yet still get the SOTA digital performance, AA digital equipment is the way to go to stretch your falling dollar. Just hoping I can get my hands on the Accustic Reference Drive2 soon, which I am sure would be a big upgrade over the old Drive Mk2 ;-)
Hotbird 08-22-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
I just recently bcame aware that Accustic Arts has come out with a special edition version of the Tube Hybrid DAC. My past experience with all Accustic Arts digital pieces has been when they come with a new MK generation or brand new gear that the sonic performance is an improvement over the last generation. This company has integrity and only comes out with new stuff when they know that have gotten a real improvement sonicly compared with the older generation. So, I'm thinking about making the move, anyone else, what do the rest of you Tube Hybrid DAC owners think? It's hard to believe that the SE version would be that much better considering the stellar performance of present DAC, but you never know.
Teajay 08-29-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Special Edition?? This is the first time I hear the news that the Tube DAC2 has an SE brethen. Any weblink to this news where I can get more info on what makes the SE version so different ? I have still yet to get my hands on the Reference Drive2, and now the Tube DAC2 SE. I wonder will there be a Reference Drive2 to match. Hmmm.....
Hotbird 08-29-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Teajay is thinking about a new Dac. Summer must be over!
Baranyi 08-30-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Teajay, I'm not so sure that the SE version is going to bring a whole lot of musical improvement to your system in particular. The SE version is only an improvement of the output tubes (Super Premium Military Outputtubes) and the quality control (production) procedures are more elaborate vs the standard DAC II. Knowing that you've tested all output tubes under the sun, maybe all you want to do is find out what exact tubes are that they have in mind. In Europe the SE version will be EUR 400 more than the standard version costing EUR 6390. Acoustic Arts themselves say that not everyone will be able to hear the sonic improvements, the SE version will sound ever so slightly softer with same level of precision. I'm getting my new DAC (different brand) soon, and then I will decide whether to buy the DAC II just for RBCD playback or not.
Btw, anyone heard the AA DAC II against the GTE Trinity DAC? Maybe not a fair comparison...
Mtkhl567 09-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Mtkhl567, thanks for your comments. When I contacted the new importer for Accustic Arts for the US, who seems to be a good guy and a fine gentleman, regarding the differences between the Dac II and the SE, they revolved around NOS Russian tubes vs the tubes sourced from China and as you stated higher tolerances regarding quality control.
Well, I'll stick with my long plate 1940's Amperex and the difference it would cost to change to the SE does not seem justified when the performance increase might be just a slight improvement/difference over the standard DAC.
Teajay 09-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
"GTE Trinity DAC"...heard of it as the most expensive DAC ever made, costing EUR44,000.
TNT-Audio got a write-up on it 2 years ago, it seems that that they were offered for review, but they kind of turned it down (read their final conclusion)
http://www.tnt-audio.com/sorgenti/trinity_tech_e.html
At 44K Euro, it's really not a fair comparison with regards to pricing with the AA DAC2. But not sure whether the perceived performance improvement over AA is going to worth that much of price difference ;-)
Hotbird 09-02-08
Review: Accustic Arts Reference Tube Hybrid DAC II
Hotbird - the most recent retail I read was EUR 57100 !!! Outrageous price for sure, reserved for the super rich or super foolish, or both... as its only a small part of a full system.
But again a smaller new player in the business with a radical new design concept being pushed around by the establishment who are trying to protect their market interest with lesser innovative products at diminishing quality levels...
The value for money ratio of the AA DACII is again looking pretty solid!
Mtkhl567 09-02-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Eye candy photos of
Accustic Art Reference Drive2 +
Accustic Art Tube DAC2 combo
HK Hifi Review cover
Demo setup
I have heard the combo and it's stunning.
;-)
Hotbird 09-12-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
TJ and others, do you think the AA Tube DAC's treble is sometimes a bit on the bright side? I prefer a DAC with extremely refined and airy treble.
Chris
Dazzdax 11-30-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Chris, my experience has been the opposite of yours. I found DACS like Audio Note and Zanden to be "closed in" with lack of extension and sparkle/airness on the high frequencies. The AA Tube Hybrid DAC has great extension on top, not rolled off at all, with lots of detail and beautiful/natural timbres. I would assume the tubes I use, NOS Amperex longplate D-getters have a helping hand in this great top end in my system.
Teajay 12-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Chris, I have to say I was shocked when I read your comments and disagree with your findings and would look elsewhere within your set-up.
What does your system consist of, my speakers are MBL 101E's which are very revealing and I'm fully enjoying this DAC.
Dev 12-01-08
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
On the website, Postive Feedback Online, reviewer Marshall Nack just posted his review of the Accustic Arts Drive 11 and the Tube Hybrid DAC 11 SE and stated, "At its price point, it is the best I've come Across". For the details of why he came to that conclusion read Mr. Nack's review, but for us that own the AA Tube DAC 11, the SE version costs $500.00 gives you better tubes and a few upgraded parts, but basicly sounds the same as the regular DAC 11, we know already that it's still one of the best sounding redbook DACS and competes with virtually anything out there regardless of price. I'm glad a good reviewer, in my opinion, here in the states finally is giving the Accustic Arts gear some well deserved credit.
Teajay 02-01-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi,
I am currently using AA Drive 1 MK1 + DAC 1 MK2, and consider to upgrade to Drive 1 MK2 + DAC 1 MK4. Will Drive 1 MK2 + DAC1 MK4 sound more mechanical and hifi compared with Drive 1 MK1 + DAC 1 MK2? I just a bit worry abt the this upgrade will cause the sound too forward and not natural enough!
Cykeric 06-01-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Cykeric, the short answer is no, it won't sound too forward and not natural enough.
Read my review of both pieces for the details why both pieces, Drive 1MK2/DAC 1MK4, will be an improvement sonicly over the prior generation.
Teajay 06-02-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Thanks very much Teajay.
However, your review is on AA tube dac and the comparison is on AA tube dac with MK4, not MK1/2 with MK4.
Cykeric 06-02-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
I notice there are 2 versions for tube DAC II. One is tube DAC II ref, and the other is tube DAC II SE. Which one is more updated?? The outlook is also diff. One is without "tube" wording on the top, and the other is. So, which one is SE and which one is ref?? Thanks.
Cykeric 06-02-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Cykeric, I'm a little confused, I did GON reviews on both the DAC 1-MK4 and the Drive 1-MK2 which compared them to the first generation AA pieces, not the Reference Tube Hybrid DAC. Take a look at them, if you have not already.
Regarding your question about what is the difference between the tube DAC 11 and the SE version, the SE version uses some higher tolerance parts and supplies you with what are called special "NOS quality tubes". Well, at least the SE unit I heard came with JJ 12AX7 tubes, which ain't special, not NOS and sound like crap. The sonic difference between my DAC 11 and the SE version was my DAC sounded better with the tubes I use, NOS 12AX7 Amerex Bugle Boy long plate G getters. If I was buying new right now I still would buy the tube DAC 11 which sells for around $1200.00 less then the tube DAC 11 SE and go out and buy some great NOS tubes, cost would be around three to four hundred dollars, save alot of money and still have a DAC that out performs the more expensive model. This DAC's sonic performance is greatly effected by what tubes you use. So for my money I want to pick what NOS tubes that give me what sonics I'm looking for. So, in my opinion the change in a few parts or their working tolerances did not make any significant sonic inprovement, but without casting aspersions towards either AA or the US importer the DAC SE I experienced did not come supplied with NOS tubes, I guess the JJ's are better then the EH stock tubes in the DAC 11 but they both are crappy sounding, and you are supposely spending some of the extra cost on NOS tubes provided by AA. Can't answer your question regarding the top cover, the units I have seen all have the craved out tube design.
Teajay 06-02-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Thanks a lot Teajay. I read your full review, and also other comments from AA Drive 1 MK2 & Dac 1 MK4 & tube DAC II.
BTW, I am using AA Drive 1 MK1 + DAC 1 MK2 for abt 6 yrs. Now, I am hesitating if I should go for one of the following:
1. AA Drive 1 MK2 + DAC 1 MK4 / Tube DAC II
2. Audiomeca flagship transport + DAC
3. Luxman D08
It seems that the digital trend is towards 1-box player, with separated power supply. Do u think it's wise to get cdt + dac if upgrade?? Heard that the advantage of 1-box player is "totally solving the jitter problem".
Below is my little system for your ref.:
Speaker: Eventus Phobos
Pre: Luxman C800-f
Pow: Luxman M800-A
Rack: Finite Element Signature
Each gear is connected to wall socket directly with dedicated in-wall cable (individual fuse).
Moreover, I am a Redbook CD collectors, and I got over 2000 collections (actually I have no time to listen to them so start to sell some in order to get some money back, haa..).
Cykeric 06-03-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Cykeric, since I own in my collection over 6000 redbook CD's, that's the only format I care about. In my opinion your statement that CDP's have a sonic advantage regarding getting rid of jitter, hence sounding better has not been my experience. I have listened to three of the highest regarded players and found them to be good but not as good as the AA reference Tube Hybrid in my system. So, I would recommend you keep your AA transport and upgrade to the Tube reference, with the right NOS tubes, this would offer you a much higher level of musicality in your system.
Teajay 06-03-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
But some of well-known European brands such as Symphonic Line, Soulution, Densen, release their expensive new ref cd player. It's 1-box player with separated power supply.
BTW, since I am living in Hong Kong, not in USA, I would like to know every advice: is it safe to buy expensive gears (yes, AA Drive1 MK2 + Tube DAC Ref. is huge amt to me) at Audiogon??
Cykeric 06-03-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Hi, Teajay,
I just got AA Drive1 MK2 + DAC1 MK4 yesterday. My initial feeling is the sound is warmer than before. However, it's not so transparent as before. The soundstage focus is also a little bit bigger!
Do you got the same experience when you use Drive1 MK2 + DAC1 MK4?? Or it needs some time for my combo to run-in / warm-up first?
Thanks.
Eric
Cykeric 06-10-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Eric, have fun with your new pieces! Yes, give them at least 60 to 100 hours to burn in. As far as your concern over transparency, it should clear up with break in. I found the Dac1 MK4 to offer great performance, so give it a chance to settle in and let us know what you think.
Teajay 06-10-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
OK. Thanks a lot.
BTW, do you have experience on Vovox products (textura interconnect, power strip)??
Cykeric 06-10-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Guys, I just found another gorgeous sounding 12AX7 tube for the AA Tube Hybrid DAC, 1953 longplate Siemens.
This tube offers a touch more air/extension on the top, a slightly faster bass, an overall sense of more dynamics/details, yet is still retains the warmth/musicality in the midrange like the Amperex Longplate G-getters. Both are wonderful in this DAC, yet just a touch different.
Teajay 07-01-10
Review: Accustic Arts Reference Tube Hybrid DAC II DA converter
Just wanted to share that another USA reviewer, Micheal Wright, this month did a review on the AA Tube DAC and gave it a superlative total "thumbs up" for its sonic performance.
Mike used to be a staff reviewer for the website, Stereo Times, he now is a reviewer for the Website, Ultraaudio. I have always enjoyed his reviews and believe he is an excellent writer with very good ears' regarding what a piece of gear really has to offer. For details regarding his take on the AA Tube DAC take a look his review. The only aspect I was concerned with he auditioned it with JJ/Telsa 12AX7 tubes, yet he still thought it's a killer DAC. However based on my experience the performance goes to a much higher level with the right NOS tubes compared with the stock tubes even in the SE version of the DAC.
Teajay 08-26-10
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