B & W CWM8.5D CWM Series 2 Way In Wall Loudspeaker

B & W  CWM Series 2-way in-wall loudspeaker; 1x1" Diamond Dome, Nautilus™ tube-loaded tweeter; 1x7" Continuum cone bass/midrange driver with anti-resonance plug; Freq Res - 35Hz - 35kHz (-6dB); Sensitivity - 89dB; impedance - 8Ω; Power - 120W; Back Box - BB CWM8.5; Cutout(HxWxD) - "15.5" x 9.1" x 3.9"; Frame (HxW) - 16.2" x 9.7"; 3.5kg.