Teufel LT 5 Set M. Audio output channels: 5.1, Recommended usage: Home theatre. Satellite speaker frequency range: 90 - 20000 Hz, Satellite speaker impedance: 4 Ом. Center speaker frequency range: 90 - 20000 Hz, Center speaker impedance: 4 Ом. Subwoofer RMS power: 300 W, Subwoofer frequency range: 35 - 200 Hz. Power source: AC, AC input voltage: 230 V, Power consumption (standby): 1 W