B&W Matrix Tweeter Repair Service for Matrix Series Tweeters ZZ08532, ZZ8532, ZZ04372, ZZ04372 - Speaker Exchange
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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 B&W Midrange for Cm Centre 2 Replacement Part LF01826 | eBay