I've assembled the 2pi towers and glued up everything except the front. I need to put in all the R-13 before sealing them up. I have a question about where to attach the R-13 - if the R-13 is attached to the rear, how is it cut around the port? How much clearance? Or is it better to attach the R-13 to the inside of the front piece? I'm trying to attach a picture, if it goes through you'll see how far I am. I need to attach the cross braces, then I'm about ready to close them up. Thanks, Duncan McBride

In this instance, put the R13 along the front baffle, the side and the top. You can either cut circles around the woofer and tweeter holes, or you can attach the insultion up to the point of the woofer and then stop. But this one has the insulation lining the front baffle, so that it opposes the port.