GoldMaster XFORCE-1H. Audio output channels: 5.1, RMS rated power: 80 W, Recommended usage: PC. Total Harmonic Distortion (THD): 0.05 %, Signal-to-Noise Ratio (SNR): 95 dB. Satellite speakers RMS power: 50 W, Satellite speaker impedance: 4 Ом. Subwoofer type: active, Subwoofer RMS power: 30 W