Jamo C 80 SUR. Tweeter size: 25 mm, Woofer size: 155 mm. RMS rated power: 160 W, Peak Music Power Output (PMPO): 320 W, Frequency range: 65 - 24000 Hz. Weight: 7500 g. Type: Home theatre speakers, Dimensions (WxDxH): 286 x 181 x 293 mm, Audio output channels: 1.0