Artes ART-SPU950. Audio output channels: 2.1, RMS rated power: 28 W, Recommended usage: PC. Signal-to-Noise Ratio (SNR): 80 dB. Satellite speakers RMS power: 12 W, Satellite speaker frequency range: 45 - 20000 Hz. Subwoofer type: Active, Subwoofer RMS power: 16 W