Philips SPA6700B/94, 5.1 channels, 60 W, PC, Black, Wired, 1.3 m Philips SPA6700B/94. Audio output channels: 5.1 channels, RMS rated power: 60 W, Recommended usage: PC. Amplification device type: Amplifier, Amplification device form factor: Built-in, Total Harmonic Distortion (THD): 10%. Satellite speaker type: 2-way, Satellite speakers RMS power: 10 W, Satellite speaker frequency range: 150 - 20000 Hz. Center speaker mid-range driver diameter: 7.62 cm (3"). Subwoofer type: Active subwoofer, Subwoofer RMS power: 30 W, Subwoofer frequency range: 40 - 150 Hz