B & W CWM7.4S2 CWM Series 2.5 Way In Wall Loudspeaker

B & W CWM Series 2.5-way in-wall system; 1x1" Carbon Dome high-frequency; 2x4" Continuum cone FST midrange; 2x4" Aerofoil profile bass; Freq Res - 45Hz - 28kHz (±3dB); Sensitivity - 86dB; impedance - 8Ω; Power - 25W to 150W; Pre-mount Kit - CWMC7; Cutout(HxWxD) - 23.5" x 5.8" x 3.64"; Frame (HxW) - 24.6" x 6.9"; 6.2Kg.