Bowers & Wilkins CWM 652 In-Wall Speakers (Each)

The CWM652 features a 130mm (5in) blue Kevlar® bass/midrange driver
housed in a die-cast chassis which provides the extra rigidity to provide a
cleaner, faster bass. It's aluminum tweeter incorporates a Nautilus™ tube to
absorb unwanted sonic radiation. The CWM652 also utilizes a three-position
high frequency switches to fine-tune the sound. The incredibly easy to install
frame includes QuickDogs™ and plug-and-play functionality.