Teufel Viton 71 7.1-Set. Audio output channels: 7.1, Recommended usage: Home theatre. Satellite speaker type: 2-way, Satellite speaker impedance: 4 Ом. Center speaker type: 2-way, Center speaker impedance: 4 Ом. Subwoofer RMS power: 100 W. Power source: AC, Power consumption (max): 285 W, Power consumption (standby): 0.34 W