This No. 334 is functionally perfect and has virtually-perfect cosmetics. It has been fully updated with all-new power supply capacitors and all factory updates. This has been an absolutely wonderful amplifier for my system and has been totally unflappable. I very much agree with Stereophile's Class A rating. I'm only selling it because I am transitioning from a house with a large media room to a 40ft sailboat, and I have to transition to small Class-D amps along with it. Rated at 125 W/ch @ 8Ω, 250 W/ch @ 4Ω, 500 w/ch @ 2Ω.