Mounting In Wall speakers
 

I will be using 4 HIW1's to add to my 3.1 system. The HIW1's will be the rear channel and a front high channel. The front high channel will be mounted at 7 1/2 feet high. Is there an easy way to "toe them downward" when mounting them? Or will I have to McGuyver them to line the sound up with where we are sitting. BTW, forced into this situation by wife's desire to not mount on the face of the walls.

Thanks for any help or ideas.
Starnek