Jamo C 807. Tweeter size: 25 mm, Mid-range driver size: 180 mm, Woofer size: 180 mm. RMS rated power: 180 W, Peak Music Power Output (PMPO): 360 W, Frequency range: 35 - 24000 Hz. Weight: 28300 g. Type: Floor-standing speakers, Dimensions (WxDxH): 242 x 406 x 1007 mm, Audio output channels: 1.0