Quadral Argentum 390. Tweeter size: 25 mm, Mid-range driver size: 135 mm, Woofer size: 170 mm. RMS rated power: 140 W, Peak Music Power Output (PMPO): 200 W, Frequency range: 28 - 45000 Hz. Weight: 17770 g. Type: Floor-standing speakers, Dimensions (WxDxH): 185 x 345 x 1060 mm, Audio output channels: 2.0