Blaupunkt LS 180. Audio output channels: 2.1, RMS rated power: 80 W, Recommended usage: Home theatre. Signal-to-Noise Ratio (SNR): 80 dB. Satellite speakers RMS power: 40 W, Satellite speaker frequency range: 20 - 20000 Hz, Satellite speaker impedance: 8 Ом. Subwoofer RMS power: 40 W, Subwoofer impedance: 8 Ом. Power source: AC, AC input voltage: 230 V, AC input frequency: 50 Hz