Integrated amp -- Pass Labs vs Luxman vs McIntosh


I posted a similar query earlier but did not get a lot of responses unfortunately. As mentioned before, my speakers are Sonus Faber Olympica II, currently driven by Rogue Audio Cronus Magnum II, in a 20x15 dedicated media room. As an aside, I’m already working with GIK acoustics to treat the room. As much as I love the Cronus Magnum II, it’s clearly struggling with the speakers and room dimensions. I have been doing some research and narrowed my choices to the following (Note: mostly looking for used since my budget is $5 - 6k max)

Pass Labs INT-60 -- love the fact that the first 30 watts are all Class A; these don’t come up for sale often though. I’ve heard that these are as close to the tube sound one can get without compromising what makes SS great. I listened to INT-150 a couple of years ago and was really impressed. From what I’ve read, the 60s are clearly a step up in every way. Besides, I’ve always been fascinated by Pass Labs.

Luxman 590AXII -- I have yet to read anything negative about these. I like the fact that they are a class A design. Unfortunately, the only Luxmans I’ve listened to were 20+ years old and did not leave much of an impression (polite to a fault).

McIntosh MA352 -- A friend has the smaller brother, MA252, which I really like but not sure if they have enough juice to drive my speakers. None of the dealers near me carry the MA352 so I have to rely on feedback alone. I like the fact that this is a hybrid.

Another suggestion from a dealer is Naim SuperNait 3, but honestly I don’t know if it competes in the same playground as the aforementioned amps.

My goal is to find a nice balance between the strengths of tubes and SS -- retain good 3D soundstage, instrument separation, midrange magic, but not at the expense of bass and dynamics. I do understand that I cannot expect an SS, regardless of class A or not, to have the same lush, holographic presentation of tube amps, but want something that gets as close as possible.

I would love to listen from owners or people who have heard the amps before. Since I’m buying used, I will not have the opportunity to return them so due diligence is necessary.




128x128arafiq
@romney80 -- I agree about getting a good preamp, and that's what I intend to do down the line. The Cambridge Audio will be a temporary fix until I get a proper preamp. Anyways, I will most likely end up getting an integrated after all.
Finally decided to pull the trigger on a used Audio Research GSi75. I demoed a few amps at a local dealer and sellers in my city -- Hegel H390, Luxman 509x, Moon Audio 340i, Rega Aethos, and Audio Research. In the end, the sound of valves was too intoxicating to give them up. Of the other amps I auditioned, Luxman was a very, very close second. I'll post my impressions once I get the unit and let it settle in.
Good to hear you have settled with the Audio Research GSi75. At a list price of $16,000 and glowing reviews everywhere, I’m sure it’s something special. Since the GSi75 is a tube amp, it will sound quite different from most solid-state amps which include Class A types.

The L-509X will sound rather different from the Audio Research GSi75. I believe the L-590AXII will sound closer to it.

Enjoy ~
@ryder Sorry I meant to type 590axii not 509x. The dealer hooked up both 590 and 509 to the same speakers, but honestly I couldn't tell the difference during the audition. Both sounded fantastic!

And I completely agree with you that it was a very, very close second to the ARC. In fact, it was a tough decision to pick one or the other. To be honest, I would have been happy with either one. What tipped the scales in the ARC's favor was that not only does it have a much more expansive soundstage, but the built-in DAC is truly reference level. According to some reviews, the DAC is pretty much the same as ARC DAC9 which retails for $7500. The level of detail and clarity was something I had never heard before (admittedly, I had never heard any DACs > $3500 prior to this). 

Having said that, I felt that the Luxman had more slam and looked much nicer ... those VU meters! But the soundstage and clarity of the ARC was at a much higher level. I suspect that was mostly due to the built-in DAC.