Dynavector XV1s loading & phono


Hi.

For those of you that have owned the XV1s, just curious as to what phono stage you are using with yours (or have used) and what loading you are putting on it to make it sound great!

I have got a XV1s at the moment, but with the Cary PH301mkII tube phono stage, have never got it to sound great. I was using the XV1s on LP12/Valhalla/Ittok II/rignmat anniversary. The default loading for MC on the Cary is 680 ohms. I modified it to make it about 150 ohms which did make a substatial improvment, however, sound was still very dull, undynamic, muffled, very unexciting.

I have heard the TeKaitorua (next model down) on a Oracle/smeIv setup going thorough a very modest solidstage phono/integrated setup and that gave extraordinary results! Likewise with the Lyra Titan, used through a solid stage Lyra Connosieur phono stage was absolutely amazing. Some people have replaced their Titan's with the XV1s! I don't think I'm hearing anything close to what the XV1s is capable of at all.

I think it is something with my front end analogue setup as my CD playback sounds spectacular, WAY better than the XV1s/Cary combo in every way. Since I have blamed the Cary for the poor match with the XV1s, I have since replaced the unit with the Kondo M7 phono - but as this is just a standard phono stage, I have had to revert back to my very modest MM Linn K18II cartridge. The Linn/Kondo setup is better than the XV1s/Cary in every respect - probably equal to that of CD playback in my system. To use the XV1s with the M7, will require step up transformers.

Question is:
1) What sort of loading are you guys out there using with the XV1s and on what phono? Tube or solidstate?
2) Is my deck/arm/PS combo the main cause of the poor sound from the vinyl?
3) What stepup transformers would one recommmend to match with the M7 - there is obviously the Kondo SFz ... any other worthy contenders?

Thanks a lot for all you guys help.

Regards
David
linnmaster

Showing 6 responses by linnmaster

Hello all,

Thank you to all your responses. In response to various contirbutions above:

Nickt: The Cary PH301mkII unit has 62dB of gain. With the XV1s/Cary and my linestage (TRL Plat. Reference tube dual mono), I was having to turn the volume knobs to about 2-3 o'clock positions to get it somewhat loud. Is this normal or is it telling me something?

Rauliruegas: I was thinking that maybe the Linn Ittok II arm is not the best match, and that probably goes for the deck. With the weight of the XV1s, I could not seem to get enough antiskate on the arm using the dial. At maximum, the needle would pull hard towards the centre of the spinning record. I set up the XV1s nulling the points at 67mm and 112mm(?) - can't remeber off the top of my head. I do have plans to upgrade the deck and arm. I have had my desires set on the SPJ LaLuce/SPJ Lyla arm for some time. But with several new discoveries recently such as Raven Acustic and arms such as the DaVinci 12", I might be having second thoughts. This upgrade would still be a while away as I have MC problem that needs to be sorted out first.

Thom_mackris: I tend to disagree with the stepup transfomer method of getting good sounding results from a descent MC too. The Cary 301mkII phono had Jensen (I think) step up transformers used in them, and I know many other "world best" designs that also follow this path. Davinci Audio, Audio Note Kondo are two that I can think of now. I have Cary 300B CAD-300se tube mono blocks fitted with WE 300B tubes driving the mid on BW DM6's and I love how they sound. To me they don't sound dark and shut in - but then again, I have not had much chance to compare with others. I use the Audion 300B Golden Nights fitted with Sophia Globe Meshplate to drive the treble, and that gives a lot of detail and HF extension that I appreciate. Using the Audio on the mid gave me results that were too glarey and revieling and fatiguing to listen to. Maybe telling me somehthing about my setup? With regards to the LP12 setup, I think it's pretty good. I did it myself - took a long time - but I feel I have got the suspension up-down-only. A technician is only human as well and there is no magic in adjustment of the suspension. They might be quicker - but the end result I feel is not much difference. With regards to the tracking force, I will have to get a stylus guage first. With my previous experience with the more modest Linn K18II, I had always used the dial on the Linn arm. I could hear differences between 0.5g using the dial, but have never thought going down to 0.1g would be necessary. Looks like MC setup is a winding path - which I am currently experiencing. I have read about the 2.5g + tracking force on the XV1s, but I have never done that for the safety of the XV1s. I did however set it to the maximum 2.2g (or there abouts as I was only using the dial) and found the heavier setting was preferrable to 1.8/2.0 as a very very crude generalisation. Where I live, there is no demo of such units that you mention unless I buy first. New Zealand does not have a big market for high-end audio. I don't plan on reverting back to the XV1s at current as I am loving the Kondo M7 with the modest Linn K18II. Am looking at selling the Cary unit to help with back account dilemas after the purchase of the M7.

[email protected]: Tube related? Maybe, but the Audio Note Kondo M7 sounds every bit better than the Cary ever did when I had the Linn K18II MM cartridge running through that too!

Cipherjuris: I picked up the XV1s from a fellow Agon'er with 50 hours on the MC. Now I'm guessing maybe 150 hours as a rough ball park as I don't monitor my listing hours - I tend to enjoy the music without paperwork. I'm pretty sure that the MC is not faulty and the seller seemed pretty genuine and that the reason for his sale was not enough gain on his Hovland preamp system.

As for step up transformer hunting, has anyone had any experiece with the Davinci Audio Stepups? I know they exist, but I only hear aobut their arms. Also, Bent Audio Mu Silver's, will they be a good match for the M7. I thought of keeping to the silver with the analgoue front end. The Bent Audio Mu's are a lot cheaper than the matching Kondo Sfz, but how much different in sound quality? Likewise with the Davinci Audio Stepups - don't even know how much THEY cost.

Thanks all.

Regards
David
Hello all,

I agree with what Thom said above "remember him?" I do :) Thanks to everyone that has helped. I enjoyed reading the talk amoungst you - all useful information, so thanks. I now know that the sweet spot with regards to VTF is around the 2.0g for my case with the LP12, but I will definitely not limit myself to this figure - will experiment. With that in mind, I will persevere with the XV1s, but I need to get my phono side sorted before I would want to mount the XV1s back on. Pulling the XV1s on and off I don't think is too healthy for the arm leads or the cartridge itself. Loading wise, I have further found out a lot of people have settled for something between the 100-300 range. If I end up getting the Bent Mu Silver Stepups (1:20) based on input load of the M7 at 50K, then I would end up with a load of about 125 which the XV1s will see. I think this will be a good starting point in the near future. At the moment, its sounding good with the LINN K18II and also, I'm in "saving" mode.

Any comments about Antiskate force and what to set that to? To me, the last time I put the XV1s on the LP12, with the antiskate dialed up max, was still pulling into the record center hard. Or is this a sign that the cart is not set up properly. I have the cardas sweep frequency record if that can help get things better.

Thanks again,
David
Hi all:

Dougdeacon: Yes, I was meaning that the arm was pulling hard towards the record centre - this was when I was using the blank portion on the Cardas sweep record to set the antiskate. I thought that was what this portion was for. No? And that you're supposed to adjust the antiskate so that the stylus no longer moves in towrds the centre of the playing record? I'll take your advise and not go with that with regards to setting antiskate force. Will it work with a not very dynamic LP? I have mostly vocal and acoustic stuff.

Larryi: Thanks for the additional tips. I'll give it a go tonight with my current LINN K18mkII. I have really never known how to get that antiskate value right. All the people I have asked locally at the shops give me "well it's basically the same as your VTF". Oh, and does it matter where you play on the record? On the edge, close to the centre, or in the middle? You mention "When both tracks are about even when it comes to mistracking, the stylus force has been balanced between the two channels". I thought that when it's balanced, you'd get no antitrack in either channel? Isn't that what we are trying to eliminate - the antitrack?

Thanks heaps,
David
Hi all. Thanks heaps. I think I will be on the right track. Thanks for the tips and useful pages :). Going to get back to the music rather than reading. David