My opinion on subwoofers has completely changed because of this b&w pv1 : r/audiophile
B&W pv1 - YouTube
I opened up few subwoofers to look inside. A B&W PV1, a Velodyne SPL10, and a couple of no-names. Hope you find it interesting. :) | Speakers, Soundbars and Subwoofers
B&W PV1 Subwoofer - Guide for repair - help | AVForums
B&W PV1 Subwoofer - Guide for repair - help | AVForums
B&W PV1 review | What Hi-Fi?
M B&W PV1 - Hifi Gear
B&W PV1 subwoofer Photo #1289410 - Canuck Audio Mart
Bowers & Wilkins (B&W) PV1 compact subwoofer Photo #1672469 - UK Audio Mart