ACE IX500. Audio output channels: 2.1, RMS rated power: 36.5 W, Recommended usage: PC. Amplification device type: amplifier, Amplification device form factor: built-in, Amplifier/receiver output interface type: RCA. Satellite speaker type: 2-way, Satellite speakers RMS power: 11.5 W, Satellite speaker frequency range: 100 - 20000 Hz. Subwoofer type: Active, Subwoofer RMS power: 13.5 W, Subwoofer frequency range: 55 - 135 Hz. Power source: AC