The Bowers & Wilkins 606 S2 Anniversary Edition looks a lot like the speaker it replaces, but many of the changes are on the inside. Below you can see the latest models in this series and how their main specs have changed with each new version. B&W 606 is a member of Bowers & Wilkins's 600 series of speakers. The ideal combination of size and power, it blends its advanced Continuum™ cone with an improved … Model Frequency Sensitivity Impedance Woofer; B&W 607 >>Compare to BW 606: (Image credit: Bowers & Wilkins) While the front is fairly compact, this remains a pretty deep speaker at 30cm, so the smaller 607 model might be a better choice if you’re stuck for space. Bowers & Wilkins 606 S2 Anniversary Edition specs Reviews Bowers & Wilkins 606 review These neutral sounding stand-mounters have an astonishing low end performance 5/5 The 606’s are available in either black or white and feature ‘Continuum Cone … The 606 S2 Anniversary Edition is the seventh generation of our iconic 600 Series standmount speaker. Bowers & Wilkins 600 Series History.