Classe Fifteen 175/350 watt @ 8/4 ohm. See Stereophile article that compared the Fifteen to Levinson and Krell. Original owners have life-time warranty. Note this reflects parts quality and burn in and match before build. One of 2 used as monoblocks. I decided to keep one. Please note marks on left handle. Classe mentioned to me that they did special orders after original run ended, some owners wanted 2. I've compared to best Pass amps and it is a toss up. Sound stage is to kill for, wide and deep. I sent my Classe fifteen box to CA to get this one. Both sourced from Bay Area Audio back in mid 90's. No repairs needed or mods performed. Second owner.