I sent this question to your email address, but I forgot that your email might be down.

I'm in the process of cutting the plywood for pro pi 7's and am finished with all the cutting save for the top and bottom panels. I'm looking for confirmation: If the speakers are 17.5" wide, then the horizontal projection of the rear angled panels should be 17.5"/2=8.75", right?

Thanks for all of your help.