Ampzilla 2000 v2 and Mcintosh MC402

Just to add a bit more info. I built the original GAS Ampzilla from kit in 1975, after meeting Jim Bongiorno, Jon Dahlquist, and Saul Marantz at the Dahlquist room (driven by an Ampzilla) at an Audio show in DC. I also owned a GAS Ampzilla II…

Fast forward to 2013 or 2014, I was looking to rebuild my original Ampzilla. I cold called Jim’s company on a Sunday afternoon to leave a call-back message about rebuilding the amp, and Jim answered himself. We talked for 2 hours about amplifier design, with him telling me about his strategy for the new Son of Ampzilla II he was designing for his new joint company Spread Spectrum Technologies (SST). Mr. Bongiorno died perhaps 3 months after our conversation, but I never forgot his kindness. A year ago I had the opportunity to buy a used SST Son of Ampzilla II from the Music Room, just after Underwood Wally no longer sold them (Wally is another super-nice guy who spent a lot of time with me).

I am hugely impressed with the sound of this amplifier. SST is made by Wyrd for Sound as I understand it, and thus provide repair. I am familiar with the house sound of Mac, and some of this sound is due to the use of autoformers in the output. But the Son of Ampzilla II is truly a giant killer, and I would think that the monoblock Ampzilla 2000 II’s to be even better!

@ghasley I actually seriously considering a new Pass Labs amp. My borrowed x150.5 sound great with my Mcintosh C1100 preamp (even better than the MC352 itself).

I am exploring the option of having a new x250.8 as my next amp. 

... By the way, none of the Pass Labs Preamp I came across can even come close to the C1100 Pre. But somehow, my Mcintosh Preamp paired very well with my borrowed Pass Labs Power Amp.

While I understand your affinity for your Mac preamp, I wonder if you have tried an ARC preamp IN YOUR ROOM.  It may not be for you, but if you have not tried one, I would give it a shot.  Try the newer ones or the older ones--be sure you stick to the tube versions.

Whatever you decide, enjoy the music!

Cheers!

Have purchased a couple of McIntosh integrated and power amps. Never stayed long as they are not my thing. We bit overhyped in my opinion.

Have never had the pleasure of the Ampzilla products, perhaps one day. 
 

Quite enamored with Norma Audio and my collection of European tube integrated amps.