Artsound ASW65 B. Tweeter size: 25.4 mm, Woofer size: 165.1 mm. RMS rated power: 100 W, Peak Music Power Output (PMPO): 250 W, Frequency range: 70 - 20000 Hz. Weight: 6800 g. Type: In-wall/On-wall/In-ceiling speakers, Dimensions (WxDxH): 220 x 193 x 308 mm, Audio output channels: 2.0