Bowers & Wilkins PMK 8.3 - 8.3D In-Wall / Back Box Brands_BenQ Bass reflex - Rear ported

Bass reflex - Rear ported

and a functionally sophisticated adjustable crossover network

2 - 120 W bookshelf speakers

Guaranteed 2160p

Intuitive control

Bowers & Wilkins PMK 8.3 - 8.3D In-Wall / Back Box Brands_BenQ Bass reflex - Rear portedThe Bowers & Wilkins PMK 8. 3 8. 3D Back Box is a purpose engineered enclosure designed to support optimal performance from compatible high end in wall speaker systems. Installed behind the speaker within the wall cavity, it creates a controlled acoustic chamber that enhances sound consistency, improves bass response, and minimizes unwanted sound leakage into adjacent spaces. Built for precision fit integration in custom installation environments, it