Just checked it out. The "T" is roughly like this:


-=-----=-
......|
......|


(ignore the .'s, I needed them for spacing.)
The top part is 9" across, the "=" representing the hooks where the speaker hangs. The center of the T extends 4" down, and the metal itself is .75" wide. This makes the dimensions 9" x 4.75". There are 5 holes spaced at 2" intervals across the top, and 3 holes (including the center hole in the top) spaced at 2" intervals down the center part.

I hope that makes sense.

[black]-"The further we go and older we grow, the more we know, the less we show."[/black]