Bowers & Wilkins (B&W) BB-ISW 4 Dedicated Back Box for ISW-4 In-wall Subwoofer Brands_Fyne Audio Beoplay A9 is a multiroom

Beoplay A9 is a multiroom speaker that is compatible with both the Chromecast built-in

5 mm Cut-out (diameter) 8

Power Port is a Polk-patented design that smoothly transitions the airflow from the speaker’s port into the listening area to eliminate turbulence and distortion for louder

you'll be able to stream your favourite music tracks and control the HEOS Amp with the HEOS App

Bowers & Wilkins (B&W) BB-ISW 4 Dedicated Back Box for ISW-4 In-wall Subwoofer Brands_Fyne Audio Beoplay A9 is a multiroomIn high performance in wall bass systems, enclosure control defines the difference between loose low end and reference grade impact, and the Bowers & Wilkins BB ISW 4 Dedicated Back Box is engineered to deliver that structural precision for the ISW 4 In Wall Subwoofer in India. Designed as a sealed MDF acoustic chamber, it establishes a fixed internal volume that allows the ISW 4s dual 8 inch drivers to operate with greater damping accuracy, tighter