Bose Cinemate GS. Audio output channels: 2.1, Recommended usage: Home theatre. Amplification device type: stereo receiver, Amplification device form factor: stand-alone, Amplifier/receiver input interface type: RCA, Terminals. Power source: AC. Satellite speaker dimensions (WxDxH): 140 x 105 x 64 mm, Subwoofer dimensions (WxDxH): 222 x 485 x 367 mm