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 techno__dude

Sorry WC, my wife strongly recommend I may not comment about others Teaktons.

Since I’m really addicted to her spaghetti sauce, I can’t comment on those huge Teaktons in your room.

( My lawyer also recommends this for my financial future sake).
Wrong, it’s easy to hear the Boulder combo superiority on the yt videos. You need good headphones for this to show.


Going through the videos again, this time at my friends house through his very revealing Raidhos.
Sorry, the Boulder combo eats the Gryphon combo alive. We both agreed on this obvious fact.

I don’t know how some of you guys are listening to this, but clearly either you are biased to Gryphon either your system doesn’t show the differences...
Powercells are useful in USA , specially in Florida where AC wall power is far for being clean.

Here in Montreal Canada, we get ultra clean AC generated by hydro turbines...
Powercells are overkill in these regions.
Wow.
This Boulder combo sound so much better than the Gryphon one. 
Audiophile acoustic music in your last yt video shows this plainly.
Dynamics and tonal density,  involvement and soul,  bass, all seems better on the Boulder.
It’s obviously not up to the Boulder preamp.

But the Ayre is better built than the  Gryphon Pandora (overpriced ).
+1 thieliste , I always said the Gryphon Pandora was mew and basically overpriced. Gryphon is and will ever be essentially a class A overbuilt amplifier maker.

We know.

We’ve come to understand this thread is not about which one to keep anymore.


As long as it finds another home...
Mephisto needs 2 powercords, as it is basically 2 mono amplifiers glued together.
When you get at the top of the ladder, the only way is down.

So the key to keeping the story alive is WC trying more affordable gear like he did with the Tektons.

Because WC has solid experience with reference system and brands, he can now tell his audience how other less expensive products compare.
Sometime, vibrations on gear has to be drained ( coupled to ground). Not damped.
That is surely why those footers don’t mix well with Boulder amps.
I’m still all over Boulder as my favorite combo. Boulder is Boulder, it’s the absolute reference for me.
Not a fan of the D’Agostino momentum in general as I much prefer the Luxmans in that kind of sound categorie ( much less expensive also). Although, I admit the Momentums look is the best of the 3. I can understand why they are popular...beautiful jewels.

(To admin, please delete my upper post, doublon error. )
Subs are needed with more modest speakers, standmounts in small rooms, etc.

Not with reference speakers which are made to play huge and fast bass.

Why put some much money on a reference pair of speakers that would be handicapped with weak and bad bass...
WC, you read my last post backward.

Maybe I was not clear, I ´m on the same side. I beleive the Wilson Alexx and those kind of reference speakers don’t need subwoofers. Or whats the purpose of getting huge reference speakers if bass was compromised or lacking.
Please stop saying the Mephisto is a stereo amplifier.

It’s 2 mono amplifiers joined together. 2 transformers, 2 POWERCORDS.

This is not an opinion, it’s a fact.

Imagine the Boulders bolted together and replace the 2 covers with a single one Does this magically become a stereo amplifier ? Not nearly.
It’s two monos , not one... Who said it was one mono ? Playing with words to misguide...

2 POWERCORDS...

2 monos. bolted together.
It’s not a stereo amplifier, the only thing it has in common with that is one chassis only. The rest is two mono.

Dual mono stereo amp ——— one powercord.

Dual mono amps bolted together——— two powercords. ( call it stereo if the illusion is your cup of tea)

Gryphon can call it what they want, they are misguiding as it is not a typical stereo amplifier ...

Gryphon is also not saying out loud you need to blow out $ for two powercords...https://gryphon-audio.dk/shop/power-amplifiers/mephisto/
NOWHERE on that page they tell this to the reader, not even in the described « « pure power in power out » section. Why is Gryphon not mentioning this most important detail ?
Sorry, 2 powercords, 2 transfo , 2 mirrors boards. That’s 2 mono (glued together ). You are wrong on this specific matter and simply won’t admit it.

2 POWERCORDS.......
Wow, best sound yet (all your yt videos ) from the Boulder combo with the Transparent powercords. Astonishingly musical and refined. Best of the best.

My hat off for getting the Pass 60.8. We all want to know how more affordable gear compares to the reference ultra high end.
OUCH, that Boulder combo is just littéraly destroying anything Gryphon or Dan DAG that entered this room.
Y,

All the amps you name are subpar to the Luxman M-900u, both in build quality and sound performance.

I trust WC in saying it is among the best, as he compared it to serious amplifiers...the cream of the crop. And his tests were detailed and presented transparently. You haven’t.
Pass cannot beat DAg M400. 
Only lower priced amps than can compete is a pair of Luxman M-900u.
 Bring in a pair of B&W 800 D3. This brand has put a lot of $ in R&D over the years. 
In the meantime, waiting for B&W D4 series, you could try a pair of Spendor D9.2 if you ever get that opportunity.

Supposed to be very engaging speakers.
inna , it was already said by WC that he would bring in more affordable gear to show and learn how it compares to the ultra reference products.

WC has experienced a lot of the cream up there, so he is best placed to tell and show how more affordable amp, preamps, and speakers compare...what are the differences ...what you give up or what you get if you go down or up the ladder. 
Just teasing you WC.
Please please show us the new speakers. 
So you will do a high end integrated battle on those ? This is such a good idea. Can’t wait !!
WC, why the M6 when you already had the M3 ? Sure, more bass, but it’s a lot of $... 
By design Alex has got 2 midrange drivers. So sure it will be better than the Alexia 2 which has only one. A completely different speaker.

With the Magico M3 , you still have premium parts all over. It’s just a matter of bass with 3 x 7 inch. woofers instead of 3 x 10 inch. A pair of M3 with 2 Rel subs makes a lot more sense to me.
I’ve read almost everything  on the Magico M3. Pretty much a consensus out there they are the one to get.
Well the M6 is crazy money, so the M3 just make more sense imho. I sure hope it is better considering how much deeper Magico gets into the customer pocket...

Please don’t tell me the Mephisto could not drive them. Damn if that’s the case, they just make even less sense...
Basically, you bought the Magico A5 to resale them.

Sure would be great to hear them playing but I agree you would loose in resale value.
So basically you are saying, the goal was to show your audience how crappy those M6 could sound.

Just kidding you WC. We can hear the highs crazy resolution. And sure the Magico M6 do sound great and have a lot of potential.
I agree.

Magico is on the feminine side of things. Like the Secrets deodorant, perfect for men but made for women.

Wilsons are on the « big solid man side of things. » Old Spice deep masculine sent.

Focal is a kind of hybrid between the two others.
I recommend roses 🌹 in the room.
They smell good, and they can absorb sound reflections.

ok guys, I stop the teasing. sometimes it’s good to relax and laugh. back on topic.

When those are gone , WC will be at risk of having a baby postpartum depression. Just saying. 😂

I would change the room paint color if he keeps them. Fushia pink, aqua, something like it.
Something here just happened that never happened before.

The priciest speakers to come in WC’s room and that he played on YouTube, were majoritary juged by his audience and readers as « wtf is it just me but this sound just sux the artificial » .

And then well something else happened that had never happened before. All suddenly a DEALER appeared and came on video and just made a speach about just all perfect they sound and how perfect the Pass Labs can make them sound...

Huge first here.

And then WC said that the DCS Rossini, be prepared, sounds digital. Those two where litteraly saying it’s everything around the speakers which is the culprit.

Ok now, thats another huge first..

Sometime « panic » makes us, our goal, and the ones behind us and that goal intervene big time. You know the comforting sellers voice tone and perfect words that ressuscitate the believing..
Suncoast audio happens to be a major Magico retailer.

That and the previous youtube video must be just coincidence I guess.

Pardon me for acknowledging this obvious publicity stunt.
I thought the yt videos were to find about our opinions of what we hear. NOT. If we don’t like it, it’s the electronics fault and we get the retailer coming to defend and push the brand that is being criticized...

I don’t care how cool, honest, and knowing the Suncoast Audio guy is. He is singularly pushing a brand that he sells. It’s as simple as that.

WC , you don’t respect our opinions, you dont hear your viewers...
Sorry guys, but the latest yt videos are just like all the others out there...

A retailer being interviewed by an audiophile indirectly pushing a product. Just tell me how it is any different than all the others vids ?...

Is there any moment in those vids where they talk about the product downsides ? ... No, just like any reviewer video outhere, it seems the M6 is the perfect product and if it ever sounds bad or artificial to someone that must conspicuously be the associated electronics...

What’s the purpose of asking your viewers opinions, if it never counts in the end.
carey1110 you never seems to miss an appearance when the whole thing is just exposed...

It’s all marketing. It’s been showed naked even more with the latest yt videos and the retailer passing by ( yeah sure) pushing the Magicos  after they got destroyed by the viewers...

Still has that artificial sheen in the highs. The midrange doesn’t seem to push through.
Maybe it’s just the speakers that are not broken in. Idk 🤷🏼‍♂️
My guess is the Magico M6 will go down in history of this thread as the never broken in speaker...

But we have a much bigger problem. We cannot give our honest opinion about a speaker without being ruthlessly responded to.

The M6 latest videos have showed an edgy, undynamic, midrange recessed and lacking bass omph sound. I am not the only one to have noticed this compared to the last Wilson and Focal setups.