GoldMaster S-5101. Audio output channels: 5.1, RMS rated power: 35 W, Recommended usage: PC. Signal-to-Noise Ratio (SNR): 70 dB. Satellite speakers RMS power: 25 W, Satellite speaker frequency range: 55 - 20000 Hz. Subwoofer type: Active, Subwoofer RMS power: 10 W, Subwoofer impedance: 6 Ом. Power source: AC