Hi all. This is my first post here, though I've been reading the forum for a couple weeks now (and I've spent more time over at avsforum). As the title indicates, I'm about ready to do my first HT DIY subwoofer. (I have done boxes for cars in the past.) Anyway, in order to upgrade my sub and garner the needed WAF, I've decided to go the DIY route. The wife does not like the box look (wood or black) and the tube look isn't any better. She has seen subs (innovativeaudio.com) that look like endtables and likes those. Thus that is what I'll be building. The first problem? The more I research, the more possibilities I come up with. First I was going Shiva sealed, then Tempest sealed, then ported. After that I thought Tumult, then AV12, AV15, even SVS stuff. You get the picture. I guess (at this point) I'm looking for some recommendations. The room the sub is going in is the family room (but is "attached" to the kitchen). Total dimensions are approx. 15' X 30' x 9'. In the corner that the sub will go, I have approx. enough room for up to 5 c.f. (though 3-4 would be preferred). Listening use will be approx. 80% HT 20% music. The basic scenarios I see working are 12" sealed, 12" vented, 15" sealed. (PR won't work as the front and side need to be solid to have that furniture look.) Drivers in the running are: Shiva, Tempest, Tumult, Brahma, AV12, AV15, SVS orig 12" (I'd look at upgraded drivers, but haven't found the T/S params anywhere). As far as budget I can go to about $1,000 (though $500 would be better.) Thanks for the help. p.s. Once we've worked out the sub, I'm still undecided about the amp.