My Long List of Amplifiers and My Personal Review of Each!


So I have been in a long journey looking to find the best amplifiers for my martin logan montis. As you know, the match between an amplifier and speakers has to be a good "marriage" and needs to be blend exquisitely. Right now, I think I might have found the best sounding amplifier for martin logan. I have gone through approximately 34-36 amplifiers in the past 12 months. Some of these are:

Bryston ST, SST, SST2 series
NAD M25
PARASOUND HALO
PARASOUND CLASSIC
KRELL TAS
KRELL KAV 500
KRELL CHORUS
ROTEL RMB 1095
CLASSE CT 5300
CLASSE CA 2200
CLASSE CA 5200
MCINTOSH MC 205
CARY AUDIO CINEMA 7
OUTLAW AUDIO 755
LEXICON RX7
PASS LABS XA 30.8
BUTLER AUDIO 5150
ATI SIGNATURE SERIES 6005

With all that said, the amplifiers I mentioned above are the ones that in my opinion are worth mentioning. To make a long story short, there is NO 5 CHANNEL POWER AMP that sounds as good as a 3ch and 2ch amplifier combination. i have done both experiments and the truth is that YOU DO lose details and more channel separation,etc when you select a 5 channel power amplifier of any manufacturer.
My recollection of what each amp sounded like is as follows:

ATI SIGNATURE SERIES 6005 (great power and amazing soundstage. Very low noise floor, BUT this amplifiers NEEDS TO BE cranked up in order to fully enjoy it. If you like listening at low volume levels or somewhat moderate, you are wasting your time here. This amp won’t sound any different than many other brands out there at this volume. The bass is great, good highs although they are a bit bright for my taste)

NAD M25 (very smooth, powerful, but somewhat thin sounding as far as bass goes)
Bryston sst2(detailed, good soundstage, good power, but can be a little forward with certain speakers which could make them ear fatiguing at loud volumes)

Krell (fast sounding, nice bass attack, nice highs, but some detail does get lost with certain speakers)

rotel (good amp for the money, but too bright in my opinion)

cary audio (good sound overall, very musical, but it didn’t have enough oomph)

parasound halo (good detail, great bass, but it still holds back some background detail that i can hear in others)

lexicon (very laid back and smooth. huge power, but if you like more detail or crisper highs, this amp will disappoint you)

McIntosh mc205 (probably the worst multichannel amp given its price point. it was too thin sounding, had detail but lacked bass.

butler audio (good amplifier. very warm and smooth sweet sounding. i think for the money, this is a better amp than the parasound a51)

pass labs (very VERY musical with excellent bass control. You can listen to this for hours and hours without getting ear fatigue. however, it DOES NOT do well in home theater applications if all you have is a 2 channel set up for movies. The midrange gets somewhat "muddy" or very weak sounding that you find yourself trying to turn it up.

classe audio (best amplifier for multi channel applications. i simply COULDNT FIND a better multi channel amplifier PERIOD. IT has amazing smoothness, amazing power and good bass control although i would say krell has much better bass control)

Update: The reviews above were done in January 2015. Below is my newest update as of October 2016:



PS AUDIO BHK 300 MONOBLOCKS: Amazing amps. Tons of detail and really amazing midrange. the bass is amazing too, but the one thing i will say is that those of you with speakers efficiency of 87db and below you will not have all the "loudness" that you may want from time to time. These amps go into protection mode when using a speaker such as the Salon, but only at very loud levels. Maybe 97db and above. If you don’t listen to extreme crazy levels, these amps will please you in every way.

Plinius Odeon 7 channel amp: This is THE BEST multichannel amp i have ever owned. Far , but FAR SUPERIOR to any other multichannel amp i have owned. In my opinion it destroyed all of the multichannel amps i mentioned above and below. The Odeon is an amp that is in a different tier group and it is in a league of its own. Amazing bass, treble and it made my center channel sound more articulate than ever before. The voices where never scrambled with the action scenes. It just separated everything very nicely.

Theta Dreadnaught D: Good detailed amp. Looks very elegant, has a pleasant sound, but i found it a tad too bright for my taste. I thought it was also somewhat "thin" sounding lacking body to the music. could be that it is because it is class d?

Krell Duo 300: Good amp. Nice and detailed with enough power to handle most speakers out there. I found that it does have a very nice "3d" sound through my electrostatics. Nothing to fault here on this amp.
Mark Levinson 532H: Great 2 channel amp. Lots of detail, amazing midrange which is what Mark Levinson is known for. It sounds very holographic and will please those of you looking for more detail and a better midrange. As far as bass, it is there, but it is not going to give you the slam of a pass labs 350.5 or JC1s for example. It is great for those that appreciate classical music, instrumental, etc, but not those of you who love tons of deep bass.

 It is articulate sounding too
Krell 7200: Plenty of detail and enough power for most people. i found that my rear speakers contained more information after installed this amp. One thing that i hated is that you must use xlr cables with this amp or else you lose most of its sound performance when using RCA’s.

Krell 402e: Great amp. Very powerful and will handle any speaker you wish. Power is incredible and with great detail. That said, i didn’t get all the bass that most reviewers mentioned. I thought it was "ok" in regards to bass. It was there, but it didn’t slam me to my listening chair.

Bryston 4B3: Good amp with a complete sound. I think this amp is more laid back than the SST2 version. I think those of you who found the SST2 version of this amp a little too forward with your speakers will definitely benefit from this amp’s warmth. Bryston has gone towards the "warm" side in my opinion with their new SST3 series. As always, they are built like tanks. I wouldn’t call this amp tube-like, but rather closer to what the classe audio delta 2 series sound like which is on the warm side of things.

Parasound JC1s: Good powerful amps. Amazing low end punch (far superior bass than the 402e). This amp is the amp that i consider complete from top to bottom in regards to sound. Nothing is lacking other than perhaps a nicer chassis. Parasound needs to rework their external appearance when they introduce new amps. This amp would sell much more if it had a revised external appearance because the sound is a great bang for the money. It made my 800 Nautilus scream and slam. Again, amazing low end punch.

Simaudio W7: Good detailed amp. This amp reminds me a lot of the Mark Levinson 532h. Great detail and very articulate. I think this amp will go well with bookshelves that are ported in order to compensate for what it lacks when it comes to the bass. That doesn’t mean it has no bass, but when it is no Parasound JC1 either.
Pass labs 350.5: Wow, where do i begin? maybe my first time around with the xa30.8 wasn’t as special as it was with this monster 350.5. It is just SPECTACULAR sounding with my electrostatics. The bass was THE BEST BASS i have ever heard from ANY amp period. The only amp that comes close would be the jC1s. It made me check my settings to make sure the bass was not boosted and kept making my jaw drop each time i heard it. It totally destroyed the krell 402e in every regard. The krell sounded too "flat" when compared to this amp. This amp had amazing mirange with great detail up top. In my opinion, this amp is the best bang for the money. i loved this amp so much that i ended up buying the amp that follows below.

Pass labs 250.8: What can i say here. This is THE BEST STEREO AMP i have ever heard. This amp destroys all the amps i have listed above today to include the pass labs 350.5. It is a refined 350.5 amp. It has more 3d sound which is something the 350.5 lacked. It has a level of detail that i really have never experienced before and the bass was amazing as well. I really thought it was the most complete power amplifier i have ever heard HANDS DOWN. To me, this is a benchmark of an amplifier. This is the amp that others should be judged by. NOTHING is lacking and right now it is the #1 amplifier that i have ever owned.

My current amps are Mcintosh MC601s: i decided to give these 601s a try and they don’t disappoint. They have great detail, HUGE soundstage, MASSIVE power and great midrange/highs. The bass is great, but it is no pass labs 250.8 or 350.5. As far as looks, these are the best looking amps i have ever owned. No contest there. i gotta be honest with you all, i never bought mcintosh monos before because i wasn’t really "wowed" by the mc452, but it could have been also because at that time i was using a processor as a preamp which i no longer do. Today, i own the Mcintosh C1100 2 chassis tube preamp which sounds unbelievable. All the amps i just described above have been amps that i auditioned with the C1100 as a preamp. The MC601s sound great without a doubt, but i will say that if you are looking for THE BEST sound for the money, these would not be it. However, Mcintosh remains UNMATCHED when it comes to looks and also resale value. Every other amp above depreciates much faster than Mcintosh.

That said, my future purchase (when i can find a steal of a deal) will be the Pass labs 350.8. I am tempted to make a preliminary statement which is that i feel this amp could be THE BEST stereo amp under 30k dollars. Again, i will be able to say more and confirm once i own it. I hope this update can help you all in your buying decisions!


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Showing 27 responses by chayro

I'll tell you Jay, I don't normally watch your videos to determine the ultimate quality of whatever you're using, but the Boulders with the Transparent power cords did sound VERY good. 

@rbach - I have always found that bass response is the product of the speaker/room relationship more than the size.  In my room, I have had small standmounts produce a better, fuller bass response than larger floorstanders.  It's just the way the speaker interfaces with the room. IMO.

Jay - I wanted to ask you something.  I've seen several of your videos and it seems to me that you are changing components in and out of your system virtually every day.  Or at least every couple of days.  Do you ever just sit and listen to any one set of components for a few months and just enjoy music?  This is not meant as a dig in any way.  I like gear as much as the next guy and I believe everyone should enjoy their property the way they want to.  I know people with an expensive sports car that leave it in the garage and look at it.  Great.  So I'm just asking the question out of curiosity.  Apart from the lifting and trying to get heavy cables in place, comparisons can be a lot of fun.  I was just wondering what your longest time was without changing stuff out.  Respect. 

Jay- will the TT beat the MSB? All I can say is that others that play at or near your price points say it does, with the right records, which is a big caveat. But it’s something you can only discover for yourself. Don’t forget you also need a record cleaning machine and … Records? To that end, I have collected some extra copies of certain records I liked and when you’re ready, I would like to send you as a starting point in your journey, copies of 2 original Mark Levinson recordings- Jazz at Long Wharf and Elliot Fisk plays Scarlotti. They are analog classics and I would like for you to have them. Oh, don’t forget a stylus timer. 

@WC - First of all, I appreciate you taking my post as it was meant and not as an attack. I fully agree with your approach, as it perfectly serves your ultimate goal, which to create a successful You Tube channel and build a consultation service.  You’re absolutely right. Many people want instant gratification and you are giving it to them. Be well and I wish you great success.
WC - Please take this in the spirit it’s given because it is done with respect for what you are doing. - I haven’t watched every video, so I may be wrong, but I honestly cannot fathom how anyone can make meaningful assessments of equipment when the setup is being changed virtually every day. Or every couple of days. I think you can get a first impression is a couple of days, but IMO, it takes much longer to really know what a component change adds to the system. For example, I recently added new speaker cables and it took about a month for me to come to a conclusion about what was better or worse than what I was using before and to judge the full depth of the new cables’ effect on the system. I am now breaking in a new IC and I don’t feel it is anywhere near its potential after 4 days. It may well never improve, but I would have to give it a minimum of 2 weeks to a month and listen to a variety of music before I would presume to make an informed statement of how this IC fit into my system. I think it’s laudable that you are basing your opinions on first-hand experience with every piece of equipment you talk about, which is far more valid than a large group of people who conflate reading about a component to actually hearing it in their own system. It’s just that I personally am wondering about the validity of conclusions made with such short-term exposure in a rapidly changing environment. Be well.

Hi Jay - I’ve posted maybe twice before to your thread. Big solid-state amps and inefficient speakers aren’t my thing really, but I have enjoyed following your journey from an intellectual standpoint. A long time ago when I was trying to build a relatively expensive system for myself, an audio salesman gave me a piece of advice that I have found to hold up over the years, as opposed to much of what we hear thrown around. He said, and I paraphrase - Decide what you want to keep and build your system around it. Somewhat simplistic, but there’s a lot of truth to it. Now I’m going to be a little blunt, but just to save space and not to be critical. IMO, you have decided that you want to keep the Mephistos because they expose every flaw in the system. So now you are building the rest of the system around them with cables, stands, footers and whatever else you may do to make them sound "good" to your ears. Nothing wrong with that, but is it possible (theoretically of course) that the Mephistos just sound harsh and analytical and you have to compensate by softening them? What if the Furutech outlet is the "truth" and is just exposing the fact that the rest of your system is "wrong" See what I’m saying? I think that no matter how you want to describe it, in the end you are deciding what you want to keep and are building your system around it. And BTW - as far as being true to the source, I worked in the recording industry for several years in my youth and I think that anyone else who has will back me up on this - mastering engineers do not necessarily mix for what they consider to be the best sound. They mix to get a sound they believe will compensate for the inaccuracies in the systems of the real world. For example, when we mixed a disco song, we would often mix with less bass than we wanted to hear to compensate for the fact that many clubs had huge amounts of bass EQ dialed in to their systems and to mix with what sounded good to us would overload their systems. Just an example. So my point here is not to criticize - just to add another possible fork in the road of the journey you are on. And please, be careful with that heavy stuff. I hurt my back 2 years ago and it is not fun, I assure you. Regards.

@viber6 - I definitely hear what you are saying and I have a lot of experience with acoustic music as I play(ed) several instruments and have my degree in music. And I assure you there is no sarcasm intended in my comments to come.  First, I don't think Jay listens to unamplified acoustic music, at least not that I have seen.  But that's not really important. From an intellectual standpoint only - if you want to boil it down, it seems that the decision that the Mephistos are the most neutral is based on the impression that it makes most associated equipment sound bad.  Obviously, that is an overly simplistic analysis, but I think there is some truth there.  And as to the way acoustic music is recorded, yes some companies like MA, Water Lily and Reference use minimal miking and processing, but I have attended several classical recording sessions at RCA studios back in the day, and the engineers used tons of microphones and large amounts of EQ to get things sounding "good" to the people paying the bills. And even as far as those audiophile recordings I mentioned above, don't the engineers select the microphones, recording equipment, room and mic positioning to get the sound that they like?  Again, It is not my intention to say anyone is wrong in their personal quest for the absolute sound, as some call it. I am just wondering if it just really all boils down to "I like the way that sounds" in the end.  I don't know. That's the way we used to buy stereos.  We'd go into Crazy Eddie, Stereo Warehouse or wherever and say "I like that one". And we took it home and never worried about whether it was accurate. I think it's interesting. 

Jay - I have a bit of an introspective question for you. Your audio journey is relatively short compared to many and I was wondering about something only you can answer - Looking back at yourself, say six months ago, is there anything back then you believed to be true about evaluating audio equipment or audio in general that you now believe to be "incorrect", for lack of a more descriptive term?  What have you learned about yourself?  
Audio can be an amazing journey if one keeps an open mind. I have always had relatively expensive components and speakers, but never really dabbled in cables and isolation. Since Covid and working from home, I have assembled a system with far less expensive components, but much more maxed out with cables and isolation and, truth be told, after many years of owning high-end gear (since the 80’s) I don’t think I could confidently tell someone that one approach is superior to the other. Obviously, the best components AND the best ancillaries are the best choice, but very few can afford that. But my point was more about the evolving thought process than the equipment itself. Jay, I think what you are doing is pretty unique in that you are dealing with some of the best and/or most expensive equipment over a relatively short period of time and it's interesting to me to see your thinking evolve as you go.  For example, now you are waiting a relatively long period of time for the footers to break in, whereas a few months ago you wouldn't have done this - at least I think. 
Jay - much earlier in the thread I asked you how you could possibly appreciate or evaluate any of your equipment when you were constantly changing the system virtually on a daily basis. You explained to me that your goal was to build a YouTube channel and a consultation service and that your target audience would not have the patience to wait a month between changes. I totally agreed with you that if your goal was to build a business, that seemed to be the correct path. At least that’s the way I remember it. But, IMO your tastes have evolved and you are talking about a system for yourself and asking your listeners to weigh in on whether you should choose a more analytical system or more "easy on the ears" components. I think your earlier answer to me still holds up. If you are choosing a system for yourself, you should pick whatever keeps your ass in the listening chair the longest. Period. Do you want to sit and listen or get up and screw around with the components? If you want a system for yourself, IMO the former wins every time hands down. But if you want to feed the audio junkies who salivate over Mephisto vs Boulder as if it were a wrestling match, then you should keep nothing and keep rotating new gear through your system and go through hours of listening to systems that make you want to leave the room. Neither decision is wrong, but it depends on your ultimate goal - System for yourself or build the YouTube channel,. I don’t think your audience would be thrilled with watching you sink into a cushy chair with a cigar and brandy listening to a beautiful-sounding system for 4 hours at a stretch, but who knows? People watch the fireplace videos at Christmas time so maybe. Excuse me if I am interpreting your posts incorrectly.  I did not pour over every word of every post, so it's possible I got it wrong.  
Jay - about the Accuphase. I’ve never owned one of their products, but I remember thinking that the E800 would be an unlikely match with big Wilsons, but it might be outstanding with Sonus Faber, Harbeth or something more like that. I mean, 50 watts into 8 ohms for Wilsons? But it is well-known that their US pricing is out of line.
Hi Jay - looks like you reached a crossroads in your path and need to make some decisions.  Do you want to assemble the best-sounding system (to your ears) money can buy, and sit back for hours of enjoyment, or do you want to keep rotating thousands of pounds of equipment in and out to keep feeding the desires of your subscribers?  Too bad that once we turn a hobby into a business it loses some of its pleasure.  Or a lot of its pleasure, as the case may be. 
Jay - I agree with your analysis of the Boulder and Odin elevating the Pass. Actually, I would refer to it as allowing the Pass to perform to its full potential. I am currently using a system with somewhat more modest components than I was used to, but they are pretty well maxed out with cables and platforms that most people in the price range would not buy. I was shocked to see how much the better associated equipment brought out in the components. And I think it’s likely that most people considering the Pass would not be pairing them with a Boulder preamp or Odin cables. Just curious, what percentage of your system would you say you have invested in cables?

I like the videos Jay does with OCD. I think they’re also good for Mikey, as he seems to come off better when he interfaces with another person as opposed to being left to his own devices. IMO.  I think the dedicated room argument has merit, but to me, the most important aspect of music reviewers is for the end user to find reviewers whose tastes align with their own. Like with restaurant reviewers. If you hear a review about the place and love it, I don’t care if the reviewer lives in a cardboard box and eats spagettios every day. I used to like Sam Tellig myself. He liked stuff that was on the smooth/musical side and I purchased several items he reviewed. 

You seemed to have had a bit of an “ah hah!” moment in PR when experiencing the profound effect the room can have on a system. You looked somewhat surprised. I was a professional musician for many years and I learned that the (theoretically) best acoustic guitar in a sh*t room didn’t sound as good as a $1000 guitar in a great acoustic space. So from a listener’s standpoint, which guitar was better? Makes you reevaluate your opinions sometimes.

Just to clarify- I never meant to imply that cheaper gear is better and the high-priced stuff is a rip off. Not at all. I was just trying to point out that evaluating and comparing audio equipment is not as simple as owning it and listening to it in your room. Makes you think of the issues designers face when they design products that will be used in totally unknown acoustic spaces and in combination with unknown equipment. I wonder what Jay’s opinion of the Wilson speakers in PR would be had he only heard them in PR, as opposed to his opinion of the same speaker in his room.  So many variables at work. 

Jay - I haven't read every post here, but perhaps, just perhaps - you have come to the point where you are realizing that the road to musical nirvana is not necessarily paved with big inefficient speakers and huge solid-state amplifiers.  Maybe it's time to explore another path.  Don't worry - it's really expensive too. 
First time I ever actually listened with decent headphones and my Audioengine D1 Dac/headphone amp.  Personally, when D2 started I really liked the sound of the solo drums better, but once the music started I found D2 to sound generally more steely on the vocals and background instruments.  So my preference would be D1 in this particular system. 

I thought you might be adding a turntable, but I was wondering where in the room you were going to put it to minimize acoustic feedback. I was also thinking that you may have to adjust your methods, as analog does not lend itself towards the rapid A/B comparisons you can do with streaming.  Maybe stream when you want to compare and analog when you just want to sit down and listen.  It’s definitely more of a commitment than digital.  Enjoy. 

I just wanted to add something important. One of the greatest pitfalls of analog is the urge to constantly tinker with it. Every time a record doesn’t sound good, you will have the urge to go readjust the vta, vtf, loading and whatever else you can think of. Discipline yourself to resist!  Have your TT set up in your home by the best expert you can find and just play records. All that other stuff will burn you out on analog. Just my opinion, but I’ve seen it before. That’s why some people should not  own analog or tubes. The thought that something may not be right kills their enjoyment of listening. 

Before you start comparing, know that phono cartridges generally take at least 20 hours to break in from new. Maybe more. And you can’t leave analog in repeat overnight, so it takes some time. But don’t get crazy listening to everyone here. You’re doing what you tell people not to do. You hired an analog expert.  Follow what he tells you until you get your bearings. 

Is it possible that going to battery power lessens the need for expensive power cords?  Your opinions on power cords seems to have “evolved” as politicians would say, after you got off the grid. Or were the comparisons done going into the wall? 

Jay- I would wager that you love the S7 because it happens to be the best acoustical match for your room acoustics more than the electronics. You’ve had top-level stuff for a long time now. I’ve had many excellent speakers in my room and sometimes you put one in and it just clicks with everything and you know it right away. I’m not sure there’s any way to predict which one will mate with the room and your taste other than to try. And, as in your case, the S7 happens to be somewhat less money than many others. Like your buddy in PR that you helped with the Wilsons. He was lucky that they happened to work so well. Even you were surprised. The speaker-room interface is a huge factor in the system sound and unfortunately, I’m not sure you can ever predict it. Narrow it down, yes, but not the final result.

I’m sure many will be surprised that the Luxman was the winner. It’s called selecting a product based on listening as opposed to reading subjective reviews, looking at pictures and advertising.  I think people want products that actually sound good as opposed to ones that let you know how crappy the source material is. Maybe mastering engineers need that, but it gets old fast at home. 

I would say that the most pervasive and consistent complaint on this forum is dealing with harshness or brightness, however you want to describe it. Audiophiles buy these hyper-revealing components and then have to spend countless thousands dialing them back with cables, footers, room treatments and whatever else. Or else they only listen to “demo” music that sounds good. Everyone enjoys this hobby in their own way, although I think that to many, this hobby is just a source of constant stress. But I think one reason the results came out the way they did was because of the question. “Which system do you prefer?”  Not “which system sounds the most accurate or the truest to the source?”  So a more euphonic system might do better in a “which sounds better” poll, but worse in a “which is most revealing of the source” poll. Political polls are manipulated this way as well, and it becomes obvious once you become aware of the manipulation. 

IMO, you should hold off on changing anything until you get your turntable and see what’s what within a known reference. Also, with speakers, I’ve had many really good speakers in my room and, for reasons I don’t know, some clicked amazingly with the room and some didn’t. Like your buddy in PR with the Wilsons.  I could tell from your reaction that they were a different animal from the same speakers in your room. Those S7s just click with your room and I think you heard it from the minute you installed them. I wouldn’t be shocked if the more expensive Magicos didn’t sound better. But you do have a “lab” so you have to experiment.  Sometimes we forget that you are not building a system for yourself like everyone else. You are experimenting with different gear for other reasons. Good luck with the TT.