Bowers & Wilkins BB 6W Back Box For In-Wall Speakers (Each) Cin/Opti-0.75m A precision acoustic filter eliminates

A precision acoustic filter eliminates unwanted resonance and distortion

this is the ultimate single-box system you and your music deserve

a cable’s characteristic impedance is also crucial for optimal performance

7˝ x 10˝ passive radiator in the center

a planar magnetic headphone like none before it

Bowers & Wilkins BB 6W Back Box For In-Wall Speakers (Each) Cin/Opti-0.75m A precision acoustic filter eliminatesThe Bowers & Wilkins BB6W back box increases sound insulation to adjoining rooms and provide the fire safety barrier often required by building regulations. When used in solid construction, the backbox will define an appropriate working volume for the speaker which may need to extend beyond the boundaries of the wall frame.