I'm on the verge of investing in a surround sound system using a Denon 3802/3 and B&W DM300 series speakers (2 x B&W DM309 Floorstands, 2 x B&W DM303 Rears, 1 x B&W LCR3 and B&W ASW 300 Subwoofer). My question relates to the rears - I am very keen to have these wall mounted. However a quick look round suggests that the type of installation can have an effect on sound quality. Will installing these rear speakers with cheap 'Speaker Wall Mounts' such as £20 ones from Argos be a bad move or should I be looking at specifically designed AV ones. I'm not against spending money on the brackets but, obviously, only want to if it's actually worth it.