Speaker Bowers & Wilkins B&w High End Sound System BMW 7er G11 G12 M5 F90 | eBay
Amazon.com: Bowers & Wilkins M-1 Satellite Speaker - 4" Glass Fiber Midrange, 1" Aluminum Dome Tweeter, Use as Stereo Speakers or Center Channel in Your Surround Sound System, Matte Black (Single) :
Bowers & Wilkins Speakers & Sound Systems - Audio Excellence