B-Stock, Apart Concept One, 2x80 W Amplifier, Stand-Alone-operation, Controllable over r RS-232 or Infra red, digital Limiter, 4 Stereo Line-Inputs with adjustable Gain, 4 Line-Inputs with RCA sockets on front panel for such as Laptops and other Playback units, Built-In Highpass filter for use when a Subwoofer is in operation, Temperature controled for closed enviroments, 19" Rackmounts Included 2 HE, B-Stock with full warranty, may have slight traces of use