ONKYO HTX-22HD. Audio output channels: 2.1, RMS rated power: 50 W. Satellite speakers RMS power: 2 W, Satellite speaker frequency range: 70 - 50000 Hz, Satellite speaker impedance: 6 Ом. Subwoofer RMS power: 50 W, Subwoofer frequency range: 35 - 200 Hz