Very beautiful Bose Acoustimass 5 series III, in beautiful state tested and in working condition. Speaker Type Cube Arrays: 2.5" (6.4 cm) magnetically shielded, wide-range drivers x 4 Acoustimass module: 5.25" (13.3 cm) low-frequency drivers x 2 Power Rating Cube Arrays: 135 W Acoustimass module: 200 W Impedance 4 - 8 ohms Frequency Response 20 Hz - 20 kHz Terminals Spring clip General Compatibility Compatible with receivers or amplifiers rated from 10 - 200 watts per channel and 4 - 8 ohms Finish Cube Arrays: black polymer finish Acoustimass module: Scratch-resistant black satin finish Dimensions (HxWxD) Cube Arrays: 6.2 x 3.1 x 4.0" (15.7 x 7.8 x 10.2 cm) Acoustimass module: 14.0 x 19.0 x 7.5" (35.5 x 48 x 19.1 cm) Weight Cube Arrays: 2.4 lb (1.1 kg) Acoustimass module: 18.8 lb (8.5 kg)