Jamo IC 610 SUR. Tweeter size: 25 mm, Mid-range driver size: 38 mm, Woofer size: 254 mm. RMS rated power: 100 W, Peak Music Power Output (PMPO): 200 W, Frequency range: 32 - 22000 Hz. Weight: 3700 g. Type: In-wall/On-wall/In-ceiling speakers, Dimensions (WxDxH): 342 x 342 x 192 mm, Audio output channels: 1.0