I am considering building two small 10" subs for my home theater setup. Any advice on good websites for information on different designs or speaker building in general?
Check this area here in the DIY/Advanced area of the HTF. Many members have built their own subs and speakers using various designs from traditional box, to sonosubs.
You came to the right place for ideas/help, although most go with 12" or 15" subs, and if you hang around long enough we'll convince you to do the same
Although in Mike's case it was really easy as he is a little odd. He's got a dual Tempest and is thinking about adding a second dual Tempest.
Did I tell you you're worse than James, Mike. I find 5dB below reference too loud, and you like it 5dB over reference. I'm not sure how much longer you're going to be able to enjoy your speakers listening at those levels