Teufel Columa 300 R Set L. Audio output channels: 5.1, Recommended usage: Home theatre. Satellite speaker type: 2-way, Satellite speaker frequency range: 140 - 20000 Hz, Satellite speaker crossover frequency: 150 Hz. Center speaker type: 2-way, Center speaker frequency range: 140 - 22000 Hz, Center speaker crossover frequency: 150 Hz. Power source: AC. Satellite speaker dimensions (WxDxH): 87 x 126 x 1123 mm, Satellite speaker weight: 4350 g, Front speaker dimensions (WxDxH): 87 x 126 x 1123 mm