Quadral Aluma 1180. Audio output channels: 5.1, Recommended usage: Home theatre. Satellite speaker type: 2-way, Satellite speakers RMS power: 70 W, Satellite speaker frequency range: 120 - 22000 Hz. Front speaker type: 2-way, Front speakers RMS power: 70 W, Front speaker frequency range: 120 - 22000 Hz. Center speaker type: 2-way, Center speaker RMS power: 100 W, Center speaker frequency range: 80 - 22000 Hz. Subwoofer type: active, Subwoofer RMS power: 80 W, Subwoofer crossover frequencies: 30 - 150 Hz