B & W CWM7.3S2 CWM Series 3 Way In Wall Loudspeaker

B & W  CWM Series 3-way in-wall loudspeaker; 1x1" Carbon Dome high-frequency; 1x4" Continuum cone FST midrange; 2x6" Aerofoil profile bass; Freq Res - 45Hz - 28kHz (±3dB); Sensitivity - 90dB; Impedance - 8Ω; Power - 25W to 200W; Pre-mount Kit - 7.3W; Cutout(HxWxD) - 28" x 9.9" x 4.02"; Frame (HxW) - 29" x 11"; 12.4Kg.