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!


128x128jays_audio_lab
Listening to both videos through my class A tube setup:

1. The drums in the audio mica come more to the forefront but are missing the details and air of the Nordost presentation. Focusing on the drums through the Nordost (on video 1) you can hear the space in which the drums are recorded. Subtle details that you completely miss on Audiomica are nicely picked up through the Nordost. 

2. The overall presentation of the Nordost on both videos is more detailed and nuanced which is what one should expect as they move up the speaker cable/interconnect ladder.

Thank you for the comparison videos WCSS!
My pleasure. I'm glad some of you have been able to make out the differences on the videos. 
Considering the Odin 2 powercord has a much fuller sound than the Odin 1 which is a bit lean, the shootout should be made using a Odin 2.
The Odin 1 is an older model, resale value is going down each day that passes.
A good thing for deal hunters, not so for the audiophile that wants the best fuller Nordost sound that competes with Shunyata and Cardas.
So I saw were a guy on one of your YouTube videos asked his significant other to listen and see what she heard. Great idea so I asked my wife who loves music but could care less about my obsession. (Lol). Well going back and forth she says she can hear some things clearer (it was the Odin  cables) but she felt the other cables had overall more emotion and weight although not her exact words. Now I didn't tell her it was cables we were listening to that made the difference but when I did she said I was just crazy (she called me some things I can't post...hahaha). 

Hello WC, I have listened to both videos of the AudioMica / Odin comparison on my main rig. With the premise that it is a little difficult to gage equipment on tracks that feature relatively narrow ranfges of audio frequencies, here are my quick observations...




The Audiomica appears to have a pronounced hump in the upper bass and lower midrange... Thaat in itself may account for the overall warmth of the presentation, but also in the king of "pillowness" in the first heavily processed comparison. On the other hand, AudioMica seems to yield restricted low level detal, and less information in the upper and lower regions. I noted that in AudioMica there is also less ambient information than in Odin (e.g. crowd noise", and the soloist in the second piece seems to have less larigularization or "voice-frie" than on Odin.


Playing back the recordings on my rig, Odin shows greater extension and information at both end of the spectrum, much more even linearity -- as in no hump in lower midrange and upper bass, greater low level detail, and... more of the natural "voice-frie" of the male soloist... Ah yes... Much greaater presence o exposed harmonics in the guitar.


It would be interesting if you could in future find some purely acoust tracks with broader frequency distribution, tonal colors, and greater dynamic swings.


Saluti, G.

 


Hi @whitecamaross, yes... I have listened to the Fink video, as well as to the previous clip -- The one with heavy processing and reverb... Listened to both of them from the little speakers of my HPZbook computer, as well as from the big rig, driven from my Zbook via USB.


Saluti,.



So I guess the general feeling is that the Odin WITHOUT HAVING A PC on the gryphon sounds more natural ? Am I reading this correctly?
IMO Odin reproduces the recordings subtle nuances and details far more accurately with the end result being we hear songs much more closely to what the artist originally intended.

To my ears it does this with no loss of "musicality".
WC how can you listen to the Gryphon WITHOUT HAVING A PC on it? 😉
I'm assuming you mean an Odin or Audiomica? Just using a stock ac cord?
I'd sum things up as the Odin more detailed and even top to bottom while the Audiomica a bit warmer and musical.
@whitecamaross 

I'd agree with @guidocorona and @chazzzy007 

Odin 1 is much more extended and liner top to bottom - just more natural. 
The Audiomica will sound way faster, more open, dynamic and more holographic when lifted off the rug. But, it is too hard to do (10 minutes time and zero dollars), so we will never get to hear what it can do. It really is too bad it is so expensive and time consuming to try this.

Is your mind closed? Do you really want to experience what is possible? Life is an infinite beautiful dance. But if you keep doing the same things over and over you will only have the same experiences (results). Try something new! Try cable lifters. Open your mind. It is fun! Learning never ends. Infinite...is what we are.....don’t get caught in the "limited, this is the way I am" game.

BTW, Synergistic Research has some new cable lifters with built in enhancers......there is a video online of them removing/replacing them in a demo and you can hear the difference through your computer speakers.
Hi WC,
When will we get to hear your evaluation of the shootout?  Looking forward to it....
Oden 1 seemed to me to be more cohesive, musically organized and connected. The tone was a bit more natural, organic and flowed better. 

However, the differences were very small IMO. Listened to both clips on my rig. 
I'd love to have the resources that WC has to have this level of equipment but I have to say he's a little slow to catch on to tweaking like speaker placement, cable lifters, music servers, LPS,s, ethernet switches/ethernet cables,FMC,s grounding boxes.
Hey everyone. Why don’t some of you post pics of your system? Since many of you have lots of suggestions I’m sure lots of us would love to see how you do it. Be sure to post several photos of the backnof your system (preamp view) showing how you rout cables there since that area tends to be the messiest spot in most systems.

Thanks... 👍
chazzzy it’s not about us, it’s all about WC don’t you know. It doesn’t matter what we think or advise. The proof is in the mic, a cellular phone to record audiophile sota gear that’s worth in the 100k...
Rome was not built in a day....true.  However, free cable lifters can be built in 10 minutes.  I guess you don't have the time.
Going to bed.. 206 AM right now and it's a wrap. Exciting new component I am enjoying as of today. Next video will shock you and also hush a bunch of noise about the entire "he/she said this is better than the other because of this or that"
No you won't be able to guess what it is. :) 
So here's a guy on Agon selling some Odin series 1 speaker cable for a cool 14k !
https://www.audiogon.com/listings/lis9eh8h-nordost-odin-3m-banana-to-banana-speaker
So WC are you using which version of Odin cables and what's the retail of them vs Audiomica? (Not that price should have anything to do with SQ)
@WCSS

"Exciting new component".....hey wait a minute. Several of us participated in your 'cable shootout' and gave our opinions on what we heard (through our computers etc...). I have a funny feeling that you didn't come to the same conclusion we did. Of course we understand we didn't get the full impact of being in your room and hearing what the two cable systems can really do....but we gave it our best shot. Were you planning on telling us what you heard and which cable (you thought) was a better match for your current setup? Pluses and minuses of the two cables brands interacting with your room, components and speakers?
I'm using Odin 1 speaker cables and PCs. That said, I introduced the Odin 2 pc on the dac last night and I was just like OMG.... Man that cable is just on another level. I'm actually trying to see if I can land the Odin 2 pc..
ok sooooooo here is my feedback on the odin 1 vs audiomica consequence:

Odin:
-clarity in spades
-a level of purity that other cables can't seem to match
- leaner presentation (for the most part)
- it DOES NOT forgive you if you have subpar cables anywhere in your system. It almost feels as if it searches for weak links within your system and brings those front and center
- detail retrieval to the nth degree
-can sound bright if AND ONLY IF one or more of your components is bright or too forward sounding (meaning it is a revealing cable)
-loads and loads of air and sense of spaciousness

Audiomica Consequence:
-muscular bottom end (more than odin)
-musical (very cardas-like)
-some detail can get lost at the expense of more bass 
-excellent highs, BUT it is no nordost odin 1
-beautiful romantic presentation that does not really make you notice what could possibly be missing


With that said, Audiomica is built beautifully. I love their power cords to be honest (i bought one for my gryphon amp) and i want to say that for those of you who don't have the budge needed for Odin 1, this is an EXCELLENT option. 
At the end of the day, FOR ME, i will continue to move forward with Nordost Odin 1, BUT i have now added a 20a pc Audiomica to my arsenal because i REALLY like what this cable does. 

Up next, i will do a power cord shootout at the end of this month which will consist of :

Odin 1 20a vs Audiomica 20a vs Powercord XXX....  
What do you all think i am bringing in next? well, i won't tell you all BECAUSE during one of my future videos we will do something more fun; i am going to simply play with 3 different power cords and i will not disclose which one is playing. It will be your job to tell me which presentation you like best and then a few days later i will let you all know WHICH CABLE you selected. This way, there will not be ANY biasing whatsoever and you will be able to shock yourself. Isn't it more fun this way? :) 
I think that is a better way to test.  Michael Fremer on Analog Planet does blind test like that with cartridges and phono preamps.  He reveals the results a couple of weeks later.  
maplegrovemusic1,101 posts02-23-2020 12:32pmWhere is your system Chazzy ?

Since you asked I thought I'd post it.
Click on my username because it's there now.

On a broader note I think every single one of us is at a different point in our journey. IMO we all should be posting here in an effort to be constructive towards the greater audio community and to help one another. I know personally a number of you have reached out to me with questions about similar components to mine you were considering and I've been more than happy to help where I can.

Personally after finishing up my recent upgrades, Lyngdorf M60, Nordost IC's and Puritan Audio Labs conditioned and PC's I just started thinking about cable routing and organization. So after researching for a week or 2, I purchased the ALTusa L3's sold here on Audiogon about 2 months ago. That after who knows how many years I've been doing this. Lolz

I'd definitely recommend them to any of you considering a cable management system. They have 3 separate "grooves" in each unit so you can rout multiple cables at once.

In the end I think those of you who constantly complain and whine would be better served by asking questions or reaching out to others for help. Earlier in this thread even @mrdecibel offered his professional services to someone he thought needed help.

I personally post here because I get a great deal of enjoyment from my system and I am constantly trying to be better informed. In the end I think that WCSS posts here because he gets lots of enjoyment sharing his journey and helping others with theirs. Maybe some of you should ask yourselves why you post on Audiogon or more specifically on this thread....

Have a great rest of the weekend everyone. 🙂
Nice system chazzzy. I think your last post is a nice step to peace. I like your choice of interconnects ( Nordost Tyr 2), and also the Rel sub. SHO 5.
@techno__dude

Cool, thanks bud....

TD we all just want the best system possible within our budget. Personally I remember thinking about how bad I wanted to have a dedicated Home theater 20 years ago. I also remember how hard I worked to make it happen. I didnt have the money but I would still go into shops and look at, listen to and dream about systems...lolz

Those here who are blessed to have really amazing systems recognize the struggle and just wanna help when and where they can. 🙂
@whitecamaross 

I like your proposal.

When you post what the three looms are, please also describe what the loom consisted of and also pricing as well.
There won't be any loom..I'm doing full nordost Odin and we will only change PCs. If you all can't detect any difference as I change PCs then this means the Odin 1 pc isn't doing a damn thing....lol.
Maybe I missed your comparison of the Gryphon Colloseum with Constellation Taurus amps.  Amp differences still swamp cable differences.
02-23-2020 5:36pmNice system chazzzy. I think your last post is a nice step to peace. I like your choice of interconnects ( Nordost Tyr 2), and also the Rel sub. SHO 5.
@techno__dude

In the REL lineup the S5 SHO (recently replaced by the S812 SHO) is the value king. The 12 inch driver is very fast and gets down to about 21-22 hz. What you get is a very transparent (to the main speakers) presentation that adds quite a bit of sonic information that help to re-create subtle spacial queues. RELs can literally transform a 2 channel or home theater’s sonic presentation. The before and after difference is quite noticeable. I absolutely love mine.
I agree , Rel SHO is on my to buy list. I currently use a SVS 12 inch. I’m sure the Rel would be a nice upgrade with faster and better integrated bass.
@techno__dude


Since the release of the new S812 SHO a couple months back, S5 SHO’s have been closing out. Now is a great time to get one. IMO they out perform anything in their class on music, and also do quite well with Home theater.
@keithr 
You have been hiding under a rock... My YouTube channel will continue to do amps but I will also occasionally do other things such as cable shootouts , maybe dacs , preamps., Etc etc. If I only stick to amplifiers, then I will be done in about a week since I've owned just about every amp out there. I gotta switch things from time to time. 


All-
This Friday night will be the reveal of my second new component. You don’t want to miss it. It will FINALLY hush a bunch of noise that was made here weeks ago. I PURPOSELY selected this component in order to tackle the debate that took place here. Lots of people here love to sit on the toilet while reading a stereophile magazine only to later go to bed and then pretend that they now know what a component is all about. To me these are dreamers who drift away from reality, but who the hell am I to crush dreams.  

Please note: I said the video will be to reveal the component and not to listen to it. I want to make that clear so that there aren’t any broken feelings.
Stay tuned
Aah' I listed what at least a dozen reference amps you have not listened to about a week ago and there is no way you could audition those in a week. Keeping it honest.
Not really sure at this time. I would need to remove them and see if anything changes 
whitecamaross

I am looking forward to the PC change/shoot-out.

Happy Listening!
In light of your very recent experience with the Alexia 1's, a very good choice with the DAWs! 👍
Jay, your videos might as well be podcasts as the camera is just in one static location all of the time showing a single view of the equipment. I get more insight from this thread than your YouTube stuff. Just saying I think your efforts are better spent here.