Quadral Argentum 330. Tweeter size: 25 mm, Mid-range driver size: 135 mm, Woofer size: 170 mm. RMS rated power: 80 W, Peak Music Power Output (PMPO): 120 W, Frequency range: 35 - 45000 Hz. Weight: 8850 g. Type: Bookshelf, Dimensions (WxDxH): 205 x 280 x 506 mm, Audio output channels: 2.0