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

Showing 50 responses by zprr

WC - what is status of Odin2 power cord and speaker cable? Did u have to return?  If so, do you expect to add more Odin2 one piece at a time this year?..
I enjoyed the video in much the same way I have enjoyed the the spectrum of posts here. Some give comparative/substantive feedback. Others simply set the stage. That’s been the nature of this thread since its beginning.  But perhaps the youtube ‘thread’ is supposed to be different...
Fun stuff WC. Thanks for sharing. Can’t get over the difference in size of those two amps. Sounds like pound for pound the 400s are really impressive. Very cool to hear Fink’s Trouble in the background. glad you are still using 
Hi WC,
Definitely let us know if you have further thoughts on the Odin1 XLR thus far.  Also, comparing it to the Clear Beyond or any XLR for that matter would be very interesting for many...  
That would be a great speaker cable comparison WC O1 vs mica vs any other on the same system.  
I do find it amazing how many people have vowed to abandon the thread only to return within hours or days. You have created something spellbinding!!
I agree with ron17’s assessment above which mirrors my experience with using V2 and O1 PCs in my system. I have also compared the Cardas Clear Beyond XL PC to the O1 and while it may have added bass (which also felt less layered) it gave up too many other attributes in comparison especially dynamics and detail. Depending on the system/components, of course, results may vary, but the differences are clearly audible.
As there seems to be confusion/ misinformation about ‘series 1’ vs ‘series 2’ Nordost, I thought I’d share my exchange with Nordost when I was deciding between V2 and O1. As you will see, Nordost does not consider Odin 1 as part of ‘series 1’ as it is being referred to above.

Me: Which would you recommend and is there anything the V2 interconnect is better at than the O1?

Nordost: No, O1 is better in all areas and should be. It’s Supreme Reference compared to Reference.

Me: I am leaning toward to the O1 but am a bit concerned I may lose the warmth and richness of the 2 series.

Nordost: Not in the least, O1 is still the best cable we produce outside of O2. O1 will outperform V2 in each category but still maintains the same characteristics or sonic signature.

Me: Got it. In part I ask as series 1 has been described as 'lean' and Odin 1 has been around since 2007 and is part of series 1...   So I did not know if that 'lean' sonic signature would be part of the Odin 1 as well versus the series 2. Does that make sense? It sounds like this is not the case...

Nordost: You are correct, when we talk about series 1 we are referring back to Norse series 1 and Valhalla series 1. Odin has never a series 1 in the same context due to individual conductor gauge.




Hi WC,
When will we get to hear your evaluation of the shootout?  Looking forward to it....
Hi WC,
Would you also consider the Simaudio 850p?
Currently running it with the Sim 860a v2 monos.  Sublime.

ugh this is a painful exchange. @daveyf, i appreciate your input as maybe many do, but to justify your continuous over the top conclusions like "it simply kills them!" please bring your best analog to Jay’s home so we all can truly hear everything we on the digital side are truly missing. I am completely serious. Bring it.

Very much looking forward to all coverage and discussions from Axpona, especially Jay’s top 3-5 sounding rooms. Safe travels to all attendees.

I have heard from my local dealer that Nordost and Gryphon do not play well together. So much so that they brought on another cabling manufacturer into their lineup that they previously didn’t carry before adding Gryphon. This was not your experience with the Colliseum... perhaps this is the case with the Mephisto as you may have alluded to in the video.  Your point of needing to find the right cabling and components to a new amp obviously well taken.
I can attest to WC’s point re: Simaudio/incremental changes up the ladder. Going from Sim’s 870a amp in stereo mode to the 860a v2 in stereo mode to now two 860a v2s in monaural mode, the synergy remains with zero downside.
haha WC burning the midnight oil. 
love it 
great insights this week, looking forward to the next preamp
ha greyhound u got it. was laughing at WCs wording in his post but then realized likely some greater msg that went right over my head. 
@tfl303
really appreciated your post
refreshing voice which is one thing i like about this thread when it happens

Really looking forward to this playlist Jay. From the few songs you have recommended, will be settling in for a long listen. Thanks for the work culling such a list.

hm. a few of us might like that but doesn’t necessarily drip w drama or controversy

great post @tjassoc 
@techno good suggestion!

wish i could spend the evening listening to the mephisto and pandora combo

take good care everyone 
Hi WC, I love the "give you up" track and have used it since it was released when I am doing a/b comps (among other tracks). My experience matches yours. Initially I was so concerned about the ’brightness’ that I always hear (e.g. at ~50 seconds in) in the low 80db range. I wince and have to dial it back a bit. Upper 70s does the trick.
I enjoyed the article WC sent and take it for what it is. Also, interesting reviews of Dartzeel CTH 8550 MkII integrated amplifier and the Simaudio 860a v2 (both in stereo and mono) in HiFi+ released today.  Fun to read and interesting to reflect on how one's own experience may or may not agree.
Hi WC, I could not find individual links to those reviews yet but was able to download the full issue of HiFi+ November 2020 to read them.

On your point above, it is funny, I was away from my system for 2 weeks (left playing while away) and was listening for first time last night... I was like this sounds off, something is not right. I truly hope I was just tired and things sound better tonight. 
There was a nice week or two stretch where the thread was refocused on WC’s journey. What happened? It seems like the lengthy, reoccurring Tekton posts perhaps should be on different thread at this point. I think we all caught the drift awhile ago. WC can correct me of course.
whew
Back to the journey. 
I really enjoy the YG tweeter - mix of soft dome and hard metal - but I have never heard it compared to Be. Anyone?
https://www.yg-acoustics.com/tech/billet-dome
I owned and loved the Dynaudio Confidence first series for 8 years. But never spent time with the second series or most recent edition...
I don’t doubt that at all. I definitely do not regret moving on to ygs. Different level, for me.
Incredible! The pace of this journey and level of equipment seem to continue to accelerate and sure are enjoyable to witness. We are all the armchair beneficiaries of the time intensive/behind the scenes hard work and literal heavy lifting. Take care of that back!! Thanks again WC



agree. definitely many seem to loathe it. it seems on other forums, not as much.
congrats wc on 3k subscribers. that is amazing! finally caught up on the videos after this short respite. for me, there are so many short helpful nugget observations through the course of the videos that you make. i am glad to hear them and acknowledge that they can’t all be captured here on this thread as they used to be before the youtube videos. totally get it.

that said thanks for still keeping this thread alive as I really appreciate the dialogue and contributors’ perspectives. frankly, i do not spend much time reading through the youtube comments. I wish there was one place where everyone could engage but understand that is not the modus operandi of the day.

regardless, excited for the next reveals and still, most importantly, your evaluation commentary on various equipment once you feel comfortable to share your observations (even if perfect playback, break-in and set-up conditions are not fully achieved). Hope you are enjoying your music there.

Thanks again Jay for the work pulling the playlist together. Really enjoying many of the songs including a number we have heard through your videos. I am finding them one by one over on Qobuz which I use through TAS. So far finding about 80%.

very refreshing post and analysis. and looking forward to listening closely to the latest from WC (now w a decent pair of headphones).  wishing all a happy and safe holiday!

well said @pokey77

and agree w your description @ron17 as to the thrust of this thread and jay’s approach. no secret there

ah ok
moving on 
WC - what would be some dream match-ups in the next year or two that u would like to see happen that noone has done before (amps/preamps/dacs/cables)?  Price independent. We understand, as always, stars need to align. I am not asking you to show your cards as much as just curious if you could give us a few thoughts. 
Happy and safe new year all!
haha there was gap of ~5 days 2-3 years ago.  everyone was worried about WC

Would like to think Furutech had a burn in machine like Nordost has for cables.  500 hours of cacophony does sound painful. 

Fwiw. Viber has posted 11% of posts on this thread since March 2018. 

1991/18100. 

But by word count I suspect easily 25 to 30%.

Over 95% of viber’s posts on agon have been on this thread since March 2018

I suspect/hope there are many other threads on agon where viber’s input would be embraced more than it has been for years here due to the beating the dead horse insistent posts.

Just one observation. Not to mention Jay, the OP, has requested countless times to reign it in.

Not sure why I just spent the time on this

 

 

fantastic.  you definitely built up the suspense. enjoy the fruits of all your work. and of course what literally sounds like an amazing synergy. 

sounds like time for a virtual group hug. i for one appreciate everyone’s passion and discourse on this thread. and of course WC’s relentless efforts that keep us engaged
! that was random. enjoyed your findings on the latest video wc. I do wonder about footers on top of another amp versus on a shelf as previously mentioned but the boulder might be an uber shelf in its own right