Edifier X600. Audio output channels: 2.1, RMS rated power: 30 W, Recommended usage: PC. Amplification device form factor: built-in, Total Harmonic Distortion (THD): 10 %, Signal-to-Noise Ratio (SNR): 85 dB. Satellite speaker type: 2-way, Satellite speakers RMS power: 8 W, Satellite speaker frequency range: 190 - 20000 Hz. Subwoofer type: Active, Subwoofer RMS power: 14 W, Subwoofer frequency range: 20 - 170 Hz. Power source: AC