I've got a Wharfedale surround speaker system. Mains are Emerald 97's, Center is an Emerald, and the Surrounds are Diamond Anniversary. For the most part, I really love the sound from these speakers for 5.1 movies or just stereo... but the center channel speaker seems a little weak. I notice occasional glitches from the vocals. Mostly the vocals distort or buzz slightly when the sound peaks. I guess I am wondering if this is inherent to the recording or is it that the Wharfedale center channel speaker is incapable of carrying the vocals cleanly ??? I am also wondering if this is a common problem with center channels ? I have heard some discussion that horizontal placement of drivers is not ideal, but I don't understand why this would be.