All P Series speakers share the same width - a slim 200mm. The key point of difference in the P5 is the lower bass drive unit, also present in the P6 but not the P4. It is in fact an extra bass-only drive unit; a 165mm dia Cobex unit housed in its own separate reflex cavity within the cabinet. The unusual thing about this unit is that the B&W engineers have deliberately taken the decision to select a lower bass drive unit which has different characteristics to the Kevlar bass/midrange unit.This brings an extra degree of freedom to tailor the low-frequency response for the best possible combination of accuracy and extension which would not normally be possible Technical highlights Kevlar: B&W developed and patented the method of using Kevlar for loudspeaker cones to reduce unwanted standing waves. DuPont originally created Kevlar for use in bulletproof vests. The item "B&W Bowers and Wilkins Preference 5 Floor standing Speakers in cherry wood" is in sale since Friday, April 2, 2021. This item is in the category "Sound & Vision\Home Audio & HiFi Separates\Speakers & Subwoofers". The seller is "itguyjoe" and is located in Selby. This item can't be shipped, the buyer must pick up the item.