Elac CC 601 X-Jet. Tweeter size: 105 mm, Woofer size: 180 mm. RMS rated power: 300 W, Peak Music Power Output (PMPO): 220 W, Frequency range: 35 - 50000 Hz. Weight: 16000 g. Dimensions (WxDxH): 522 x 318 x 276 mm, Audio output channels: 1.0