Quadral Aluma 2080. Audio output channels: 5.1, RMS rated power: 320 W, Recommended usage: Home theatre. Amplification device form factor: built-in. Satellite speaker type: 2-way, Satellite speakers RMS power: 100 W, Satellite speaker frequency range: 85 - 22000 Hz. Front speaker type: 2-way, Front speakers RMS power: 100 W, Front speaker frequency range: 85 - 22000 Hz. Center speaker type: 2-way, Center speaker RMS power: 60 W, Center speaker frequency range: 80 - 22000 Hz