Teufel Concept E 300. Audio output channels: 5.1, RMS rated power: 100 W, Recommended usage: PC. Satellite speaker frequency range: 150 - 20000 Hz, Satellite speaker impedance: 8 Ом. Subwoofer RMS power: 300 W. Power source: AC. Satellite speaker dimensions (WxDxH): 90 x 98 x 125 mm, Satellite speaker weight: 530 g