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
Jay,
You are merely ranting, sorry to say.  I didn't want to say this before, but since you brought up the Rane, I will tell you that on my visit of Dec 23, I brought my tweaked Rane, bought from mrdecibel, and put it in place of the Pass preamp.  The Rane was first used as a line stage with flat settings, no EQ at all.  I asked Steve to listen to the Rane using his familiar recordings.  He immediately said that the Rane was more forward, neutral and detailed than the Pass, but most of his customers would prefer the laid back and sweeter quality of the Pass.  Then I adjusted the Rane several ways to illustrate effects on vocal tonality, and HF percussive transients.  He said the experience was an eye opener.  In an upcoming video when I bring all my components, I will reveal more.  He suggested that I take the Rane to our audio repairman to get better caps, etc.  I don't want to touch my precious Rane bought from mrdecibel, but I will take my original Rane to the repairman.  I thanked Steve for his great idea.  

YOU need to open your mind, listen for yourself just as Steve did, and stop your uninformed remarks about how a very cheap component can't be any good.  I have praised your expensive equipment for their sonic qualities.  Now it is time for you to show equal respect.  BTW, I am one of Steve's doctors, and our friendship remains.  How do you know any of your dealer/business contacts are really your friends?

It is true that I have diminished HF hearing, but that is not why I boost the HF.  I used the same settings I use at home for Steve's system, and he agreed with me about the benefits of the EQ the way I use it.  That's what he heard with his ears.

Whether I buy the speakers is NONE OF YOUR BUSINESS.  Even if I don't end up buying the GTA, my analysis is truthful because I have no hidden agenda.  You can listen to the videos yourself, be honest with what you hear, and tell us what you hear.  I asked the others here to do the same.  If some people prefer warm, rolled off sound, that is their privilege.  I hope that this is still a free country after Jan 20.

Most important, I believe that since you value clarity, although maybe not as much as I do, that you would benefit by considering the GTA speaker with 2-6 subs.  I spent most of my time listening to it without the subs.  I heard excellent mid bass from the panels alone.  I brought a recording that has soft 36 Hz bass.  It was there, although we both agreed that subs are necessary for low bass.  This system does everything better than anything I have heard in my life.  I told Steve and will level with you here, that I am not sure that the GTA quite equals my combined Audiostatic 240/Enigmacoustics Sopranino super tweeters for clarity at low/moderate SPL's.  Of course, for large scale music, the GTA kills my speakers for dynamics, bass extension, realistic imaging.  My speakers may be superior for small scale music clarity.  I will know more when I bring my components to his house next Wed.  I was still impressed by how even the euphonic Lampi and Pass still showed the superiority of the speaker compared to anything currently available.  I can only imagine how your SOTA source and electronics would show off the GTA + subs.  

Steve is an honorable audio professional who respects his customers' needs for thorough evaluation, and routinely welcomes his distant customers to bring anything they want to his system.  Most of the dealers I have met are nowhere near this degree of professionalism and true caring about customers' desires.

I intend this post to be friendly and helpful, not as a troll.  I respect your business goals and don't interfere with that.  You can cultivate customers who share your approach.  In addition, I sincerely hope you can appreciate the great accomplishments of the designer who I believe has the best speaker for nearly every sonic criteria, and one day seriously consider it.  I am not getting any commissions for sales.  I just want to share truth with people who share my passions.
Ok viber...
I’m not going to start anything but you should tell the general public here what you do with rane and how you pretty much use lamp cords for speaker cables and you boost the hell out of your rane eq on the high frequencies. I can’t go into more detail than that but it would be good that you tell everyone how you really listen to music: full blast on high frequencies and no folks I’m not exaggerating. That said, this doesn’t matter to me because it is your gear. What matters to me is that you come here to praise gt audio speakers, once, twice, three times, four times and on and on and you STILL are rocking some old speakers because you claim they are better at something than the gt audio speakers that you just listened to, have listened to and will listen to in a week or so?
You might as well tell Steve you aren’t buying anything but you will give him discounts on his future medical needs for his efforts to accommodate you constantly.

If you aren’t buying the GT audio speakers, there is no praising you can do here, on my journey,  that will make people believe you. It isn’t the money ( you’re a doctor so you can afford them) so it is clearly that they don’t do it for you and you are just trying to do something nice here for Steve by dropping good feedback about their speakers.
Be upfront with them before you go see them next week. Don't waste their time. Tell them straight up YOU ARE NOT BUYING ANYTHING. Don't mislead them. 
I’ll leave it at that.
It would be nice if the rest of the day could be focused on good will toward men and leaving the salesmanship and shilling for another time. Merry Christmas everyone. 
This thread has been used by some as a vehicle to create advertising/exposure for certain products.
Yes, which is unfortunate when it has nothing to do with WC’s journey, the subject of this thread