cm8Full Bowers & Wilkins (B&W) CM8 specifications. The CM8 is an elegantly proportioned, slimmed down version of the award-winning CM9. A true three-way loudspeakerCM8 · N-[(1S,2R)-1-benzyl-2-hydroxy-3-{[3-(trifluoromethyl)benzyl]amino}propyl]-3-(1,1-dioxido-1,2-thiazinan-2-yl)-5