Elac FS 189. Mid-range driver size: 140 mm, Woofer size: 175 mm. RMS rated power: 140 W, Peak Music Power Output (PMPO): 200 W, Frequency range: 36 - 50000 Hz. Weight: 23000 g. Type: Floor-standing speakers, Dimensions (WxDxH): 240 x 325 x 1105 mm, Audio output channels: 1.0