Generally, you want the center channel speaker to be less then 24" higher or lower then the front mains. If has to be higher then angle it down slightly. My center channel (NHT) has a third leg you can attach to the back of the speaker that supports it when in TV's with a small top and it gives a little room to angle it yet still stay in place...if you CC doesn't have an adjustable rear leg then I suggest using blue tack (available at Audioadvisor.com) to couple the speaker to the top of the TV and whatever you are using to wedge the back of the speaker higher. I use blue tack under all my speakers to keep them from being easily knocked off the stands and isolate them from the stand.
Placement of Center Channel Speaker
What is considered good practice with regards to placement of the center channel speaker relative to the front main speakers in a home theater set-up? Specifically, is it acceptable to have the center channel higher (sitting on top of a TV, ~58" off the floor) than the main speakers? I was thinking of angling the center channel downward towards the listening position.
Thanks,
Fernando