I've listened to several amps vs both the #336 and #436 like the Krell FPB 350MCX, the Classe CAM 350, Krell KSA 250, and Bryston throught my Revel Salons. I found the that the #436 sounded much better than the newer Krells, (the dealer who loaned them to me confirmed this too) fuller bottom end, much more listenable, I thought the Classes sounded way underpowered and anemic, and the Bryston on the light side of the spectrum more like the Krells, (I have the least experience with this amp) The Krell KSA 250 running full class A has a tube like sound that the #436 couldn't match and a wide soundstage. The low end of the Krell was very dynamic but not as controlled and musical as the 436. The #336 is a good amp, and I owned it for over a year, but the #436 beat it in every aspect except looks, (I like the heatsinks.)
The guys at Audio Reveloultion list the 436 as one of the top products, and several of their reviewers have sold their previous amps to install 436s in their system.
The 436 has also been favorably reviewed in the Absoulute Sound, and Sterophile.
I have not heard the Pass amps at all, there are no dealers in my area, but I know they sound great by reputation.
Hope this helps.
Sgr
The guys at Audio Reveloultion list the 436 as one of the top products, and several of their reviewers have sold their previous amps to install 436s in their system.
The 436 has also been favorably reviewed in the Absoulute Sound, and Sterophile.
I have not heard the Pass amps at all, there are no dealers in my area, but I know they sound great by reputation.
Hope this helps.
Sgr