AudioFred Messages: 377 Registered: May 2009 Location: Houston
Illuminati (1st Degree)
Another option, since hearing the full stereo effect isn't as important in an office as it would be at home, is a single stereo speaker. You hook up both the left and right channel outputs from your receiver to the separate L and R inputs on the back of the speaker. Both channels play in the same woofer, but the highs from each channel are sent to a separate angled tweeter. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-364
My experience with ceiling speakers is very limited, so others, please comment if you're more familiar with them than I am.