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!


jays_audio_lab

Showing 50 responses by pokey77

I guess I'm in the minority. I voted as follows:

Video 1 = 2

Video 2 = 2

Video 3 = 1 - This was a tougher call because I like some things the SS does but overall I like the Tubes as they are a bit more musical and seductive. The SS have more leading edge but can bite a bit in the vocals. Now, this is me listening through a laptop with AKG K533 Pro headphones. I make no assumption I'm anywhere close to what Jay is listening to in his room. But, it is also fairly easy to hear the difference between Tube and SS gear here. Not sure I'd pick the same in person though.

For those who think they can't hear a difference, get a good pair of headphones and listen and you will indeed hear differences.

@viber6 

 

Interesting observation on headphones and using cups to space them from your ears.

@thezaks 

 

"I agree - wondering if choices would be the same if we listen in-room vs  YT." Very valid question. I thought about that too. Jay is hearing way more being in the room than we'll ever hear over YT, not matter how good of a headphone system or playback through your main rig is. There's no doubt.

 

@kren0006 

I too could care less which was which. I simply picked what I like the best.

@jays_audio_lab 

I appreciate your kind and insightful comments - you hit the nail on the head, metaphorically speaking.

Spoiled by Boulder and Alexx, yes.

Can't wait to see where this new ride goes. I'm sure WC has great things in store for us all. Hopefully better digital too.
@astewart8944 

Yep, I was with my childhood friend from New Braunfels very recently and he loves diet Dr. Pepper. He says it tastes just like regular. I love DP too, but always get regular and when it is not available, I get Mr. Pibb. Root beer next.

@whitecamaross 

I like Texas a lot myself. In addition to the "Big horsepower cars, big homes, plenty of space..." you have really nice folks too. Something we don't really have much here in SoCal. Just a different culture.
@kren0006 

Yes, TX is too hot in the summer and too cold in the winter. Just one reason I'd not move there. I really enjoy my visits there though.

Long listening sessions come with a well-dialed-in system. WC is not there yet with this one, just give him some time.
@ghasley 

Your contribution here is much appreciated. I surely agree with your comments - "The Audiogon community used to make it very uncomfortable on trolls and were more welcoming to opinions. Lets make it that way once again".
It would be nice if those very few who only want to create drama, for them to just change the channel and exit. This is WCs thread and he can choose how and when he wants to spend his capital and based on whatever feedback he gets. Respect is given were it is received.
@inna 

I often wonder if English is your first language. You wrote "Synergy indeed" then later say "Part of a synergy talk is BS". What are you meaning to say with the statement "Part of a synergy talk is BS"?
@inna 

Yes, Jay and Mike are in business. But I don't see them pushing anything. They are just sharing what they hear. Unless one was there, they cannot say anymore. This is not a question of class, but rather of synergy.
@whitecamaross 

I just went in again and tried the video and I got amazing bass quality. It seems either I get thin sound or I get really good sound. I'm using a laptop and AKG K553 Pro headphones. Very easy to hear differences.

So, to others who felt that the sound wasn't that good, go back and try it again, at least one more time. Once you hear the track with solid bass, you know you are getting the full SQ from YT. Sounds very nice to me. Would like to be in the room though.

mbl kicks *ss! Heard it many times and love it. But you need the right room and the $$ to play in that pool.

@whitecamaross 
@inna 

So, yesterday I just happened to be sitting at my computer when the new "Magico M6: We begin to get serious" video was released. I began listening to it immediately. It sounded bass shy and midrange heavy. Well, I went back to the video about 20 minutes later for some reason and found that somehow the sound was being limited, not sure if by YT or what. But when I listened to it a second time, it was very linear with great bass, midrange, and top end. Again, I'm not sure why that is happening, but it is.

As a matter of fact, it happened again today. I went to YT just now, because of Inna's comment, and played the video and again and found it to be bass shy and midrange heavy. I tried the video about three more times and boom, now it was playing correctly. So for those who heard lack luster sound please try it again. Maybe WC can explain it here.
It is expected for everyone to have their own opinion. But it is not expected for some to be so uncordial. This is supposed to be fun, not adversarial.
techno_dud

Dealer profit will vary from brand to brand. If you want to know what it is on a specific brand, contact a dealer and ask. Jay is in no way obligated to share this private business information. I'm sure that you negotiated for all your gear, we all do that.

It seems you have no filter, you just say whatever you want. Please use a little decorum. It will go a long way. And, you are not saving anyone, you are just being aggressive/abrasive for no particular reason. As Jay noted, all POVs are appreciated, but acting out does not look good on you. Finally, if you just think this is the worst thread, you can always change the channel.
At least one poster hear stratifies amps into levels like they can be absolutely graded into levels. While I may also somewhat agree, this will not work on an absolute basis. Best way to go about it is to pick the speaker you must have, then demo with a number of amps until you find the best synergy.  You may have assembled the "best speaker" and the "best amp", but they may also not work well together. This is also why it is good to have a dealer that can help you through the process. If you want your system to sing, this is the first part of the process you must navigate. WC does that by process of elimination and speaking/visiting with his contacts. I applaud that.
Turntables are great. You just need an amazing table, arm, arm wire, cartridge, platform, phono pre, high quality interconnect, etc. And yes, it will be very rewarding. But unlike having a digital source that is also optimized, and has access to Tidal & Qobuz, you still need to buy and store records. This is a major turn off for some and I'm not sure that Jay wants to futz with vinyl, but he'll let us know if he does. When I need a vinyl fix, I just visit my nearby dealer.
@whitecamaross 

I've not much cared for the 160Ms. Heard them on DAW, Alexia 2, and Alexx. Thought them best on the DAW (still not all that great) and didn't care for them on the Alexia or Alexx. Have not actually heard the 160S but my dealer did have one. I preferred the Momentum gear on any of these speakers or even the Progression on the DAW. Price is more, I get it, I'm just sharing actual experience. As an aside, not sure my dealer ever sold any 160Ms.
@whitecamaross 

As you may remember, I've heard the Ref10 pre many times. I forget if I heard the 160Ms with Ref6 or 10, but I don't think the Ref10 could rescue the 160Ms. I think the Ref10 is one of the best preamps I've ever heard. And the Ref10 phono preamp is the best phone pre I've heard for sure.
@whitecamaross 

I will respectfully disagree with you on the XLF vs Alexx. I've heard the Alexandria XLF a few times, but after hearing the Alexx, I'd think going to the XLF is a backwards move or a side step at best. I've never had them in my room, only heard at the same dealer (not my local dealer). And have not directly compared Alexx vs. Alexandria XLF in the same room at the same time.

I heard the Alexx V a couple weeks ago with music that I'm familiar with. They had 50 hours on them and the pre/amp were BAT Rex3 and source was Quboz over dCS Rossini DAC+clock. I think the new V model may be a little better, but the owner thought they were mostly just different rather than better than the Alexx v1. Again, YMMV; this is just one man's observations + the owners comments. And I have not heard the Alexx with the BAT combo.
It may be "lazy" as WC points out, but it is also a very wonderful way to find new music. Opting out of streaming music wholesale because they may not have the best version of a recording is shooting one's self in the foot. I'd encourage you to give it a try for a month, most services give you that to decide if you like it or not, so there's no loss. -BTW, Tidal often has two or three different versions of the same release. Not sure on the other services. 
Cheers
@viber6

With all due respect, I believe that ron17 hit the nail on the head.
In the end, it is what each of us likes - our own personal reference or standard. That does not make it THE standard, it just makes it what it is, what WE like best. There is no right or wrong, so we need to live and let live. Enjoy music the way you want to, that's why you spend time and $$ to assemble and enjoy a system. You build it for yourself, not someone else.

BTW, I've seen no attacks here, there were none.
This thread has gone way off course. Please take the discussion to PM or else where. Thanks
@jays_audio_lab and others

It seems that several of you are hearing a lack of bass and it is presenting as too much upper end. One poster wrote it is missing the "bottom octave". I have experienced this a number of times and can say unequivocally that it not Jays video, it is YouTube. What I've noticed is that sometimes when I play a video, indeed there'll be no bottom octave, really no bass at all. But I've found that if I leave my headphones connected for five minutes or so and then try to play the video, the bottom octave is certainly there - a very night/day difference. I'm not sure if YT is throttling the download or what is happening, but it has happened enough that I just have to be patient and know after the video is on a tab for a little while, all the musical info is there. I just start a new tab and do something else for a bit then come back to the video and it works. Hope this helps.
@jays_audio_lab 

All,

See my post at 06-07-2021 6:41pm for reference.

I went over to YouTube to listen to Jay's newest video and it had nearly no bass. But I was not surprised as it has happened to me many times. As Jay says on YT, they are "stabilizing" the video. I found I just needed to leave the video on a tab on my computer, then wait five minutes or so, and when I went back to play the video a second time, the bass was all there. Sounds really good. So remember if you are not hearing significant bass, just wait a few minutes with the video still on your computer, then go back and it should play as Jay recorded it. This should solve all observations of little bass.
I've always had a negative view of Magico. I've heard them probably five plus times, don't remember what models (A3 twice, and some smaller and larger models), I just remember they never sounded good. I figured it was probably setup or associated gear, but I had no way to know. Hearing them in Jays room I found I quite liked them. Could I tell if I wanted to purchase them based on one of Jays videos, no. But, I did find it would be cool to look into them further some day if the opportunity presents itself. Again, they sounded quite good in Jays room - that is a testament to Jay and him trying to get the best out of them he could. Poster @ron17 gives Jay props for his hard work and putting up with the BS, and I'd agree with him.
@rbach

I think you are right. At times Viber6 has contributed to the thread in a meaningful way. But as you note, toning it down and refraining from going off into the weeds would help Viber tremendously. Home audio is a very subjective hobby. We should agree that what we like is the "best", but that it is the "best" for us, not anyone else.

Respect demanded will never be given. Indeed, it must be earned.
While I get the reasons for buying audio gear that are not based on sound quality alone, my highest want, I also understand that many people have many different purchase metrics. But the thing we have in common is we speak with our wallet. There's nothing wrong, or for that matter, right, with that. It is what it is. People should not be judged on that. The definition of an audiophile is not set in stone, there's no real way to judge absolute performance, except with your purchase. 

BTW, I purchased a new system a couple years ago and very much wanted to find either an integrated or separates that were better with the TAD E1s, but I could not find that and so I bought the matching Evolution series amp/pre. In my opinion, they are not the least bit sexy. But they really did sound the best with the E1s, go figure. So, am I right, or am I wrong - neither, I chose what worked best for me. And I'd bet some of you would agree while others wouldn't. There's no reason to become a zealot over what we each may think is the only way to do audio. Rather let each have their own choice. Agreeing to disagree, sitting down to have a meal or drink together is so much more fun than bickering about what is "right".
@rsf507 
@kren0006

I agree with you both on the Viber6 conversation. I've been perhaps a little too mild in my few postings asking for Viber6 to take a step back and hear what others have to say. If we could all just agree that none of our positions are "absolute" it'd be a lot easier to have a conversation around here - I think most do understand their opinions are indeed just theirs, but EVERYONE needs to see this bigger picture. Though most don't seem to speak up, I'm sure others wish that the constant interjections of absoluteness or comments on "hostility" do not add nor apply to this thread.

Finally, in regards to "hostility", I for one do not see Kren's or anyone else' comments as hostile to Viber and I hope that Viber can understand that when someone posts an opinion counter to his that it is just an opinion. Constantly trying to get others to come around to his point of view is not looking good on him nor adding to this thread. As chazzzy007 said, "Let's not dick up our time and the thread here with pettiness". I agree, let's move on.

@kren0006 

I'm truly sorry for your loss. I think about this from time to time and will be retiring in a few years to spend a lot more time with my couple of amazing friends, hopefully before we all pass on. God grant me time with them.
@chazzzy007

Wow, my heart goes out to you.

BTW, I have an N10 and was able to bring the noise floor much lower using an UpTone Audio EtherREGEN with a Paul Hynes SR4T LPS. Would love to try an N20 or W20SE.
@chazzzy007

Yes, I can tell you that the ER is no snake oil for sure. It just drops the noise floor tremendously and because of that you can hear much further into the music, it just becomes more natural. And as you found adding an LPS also helps too. In the case of adding an LPS to the ER, it was nearly the same improvement as the ER brought. You don’t need the LPS to hear the improvement the ER brings but it sure is another step up. I recommend both. I think Jay has an ER as well.
@chazzzy007

I've thought about getting a Puritan 156. Have you compared the sound of your amp straight into the wall vs. into the 156? The reason I ask is both the Shunyata Hydra and IsoTek Aquarius I've tried detract from the sound I get from my amp going straight into the wall.
@jays_audio_lab 

I agree with your comment that it is nice to have fun conversations. Just wish the one that can't help themselves would also contribute in the same way. No rebuke necessary.

And for those that can't seem to join in the fun, they can always change the channel. No one making them keep coming back.
@viber6


"This is a great lesson in the fact that every product is unique, and careful auditioning is needed by the buyer.  An honest dealer is an asset, who has the experience to know the attributes of each product, and is not just a salesman who says the expensive item is better.  Sometimes, not always.  "Better" means different things to each listener, depending on his preferences." Yes, I totally agree.
@kren0006

"When I purchased my last set of speakers, I did detailed auditions (we’re talking 30 minutes to an hour each, sometimes several hours across several amps, sometimes over 2-3 sittings) of 20-25 speakers all around my budget. But I keep my stuff a long time."  I did much the same with my new(er) system and it paid dividends - bravo to you for taking your time. I plan for the amp/preamp-dac/speakers I purchased to be with me at the end. The source will probably change, but the Evolution system I purchased works so well for MY needs. I had five years of search and I still love to listen each day, for as many hours as I'm given.
I submit that no one was "bullying" Viber 2 pages back. They were just asking that often "absolute" opinion that Viber takes is only absolute for himself and no one else. It may have also been that some were wearing thin on the offtopic stuff. I know, I was one of those. And I refrained from commenting, but finally after a few days, asked that that type of commentary be reconsidered/restrained. We all have our reference, but it is OURS alone. Trying to make it for all others is wrong.

BTW, Viber6 said something I totally agreed with yesterday and I quoted him about that. Never heard anything about that though.
@jays_audio_lab 

Well, I'm glad that the XLF is working out so good for you - wish I could be there but CA to FL is a long way. As I'd mentioned to you in a PM, I thought the Alexx was better. Admittedly only heard the XLF three times and always on different occasions but same dealer with ARC twice and Naim the other time (liked Naim better). And I've heard the Alexx 1s many times and the Alexx V a few times, same dealer but different amps; Alexx with D'Agostino Momentum monos/pre and Alexx V with BAT Tube Rex 3 monos/pre.

Seems you've mostly had bad luck with footers.

Are the XLFs set up to Wilson spec or just to your liking?
@kren0006 

"Imagine if you still had the Boulder monos and preamp…. " Totally agree on that.