This Amp was used to power another set of speakers in a multi-room setup and and rarely used, in excellent condition. Excellent 2 channel playback and great for front speakers surrounds multi-room setup, Dolby Atmos etc. This Ultra stable RB-1050 combines audiophile sound quality and bullet-proof circuitry. Uses a very nice sized Toroid-based power supply.. has detachable power chord, will provide PDF of manual and will pack carefully upon shipping and will include shipping if price is met. Unit doesn't have any nicks, dings on it and is in excellent shape as it was covered when not in use. Thanks for looking!