3GO Y-750. Audio output channels: 2.1, RMS rated power: 25 W, Recommended usage: PC. Amplification device type: amplifier, Amplification device form factor: built-in, Amplifier frequency range: 20 - 18000 Hz. Satellite speaker type: 2-way, Satellite speakers RMS power: 10 W, Satellite speaker impedance: 4 Ом. Subwoofer type: Active, Subwoofer RMS power: 15 W, Subwoofer impedance: 4 Ом. Power source: AC