I listened to the Sub 12 & 15. No intrest in the DYI, I'd probably mess it up somehow anyway But I'm very, very happy with my SVS PB12-plus. And another bonus...I ordered the rosenut color on both the Paradigms and the SVS are they are nearly identical in color. Here's a picture. It does not look like it from the picture, but they do match colorwise almost perfectly.
THIS WEEKEND THE SUPPORT BAR IN FRONT OF THE CENTER CHANNEL WILL BE GONE, SPEAKER WILL BE BROUGHT FORWARD, AND REPLACEMENT SUPPORT WILL BE BEHIND CENTER SPEAKER. I'LL POST PICS AFTER IT'S FINISHED.