OK Jess, it's making more sense now.
First off, 8x8x10 are not tower speakers... they're small bookshelf speakers. Assuming you used 1/2" MDF or plywood and the dimensions you gave me are exterior, that makes around .25cuft per box. If the front is 8"x8", how were you planning on putting 2 6.5" speakers on there? If you were also planning on having a 2-way system, ie also a tweeter, then you'll be limited at the most to single 5.25" woofer? Am I missing something?
Like DaveHo said, finding a set of speakers to match your already made boxes is kinda doing things backwards, but can still work. I'm assuming the box is sealed, if that's the case, it looks like you're trying to build THESE with some slightly different dimensions:
http://www.partsexpress.com/projects...ayton2way.html
If this is what you're looking for, then problem solved, my recommendations are to purchase these:
http://www.partsexpress.com/pe/showd...number=295-301
http://www.partsexpress.com/pe/showd...number=275-055
http://www.partsexpress.com/pe/showd...number=260-146
That puts you right at $100 total... then you'll need binding posts:
http://www.partsexpress.com/pe/showd...umber=091-1245
These only require one 1/4" hole to mount and then solder the wire onto the solder tab
Then you'll need a foot or two of wire to connect the binding posts to the crossover and then to the drivers... any cheap Radio Shack 12guage wire will do.
The crossovers must of course be mounted inside the box, not outside like in car audio where the crossover has it's own case and you just stick it inside the door.
If I'm right so far, then these boxes seem suited to be your surround speakers, not the main fronts. You can use them for fronts, but they're going to need to be placed on stands. Then just build 2 more like it and you've got your rears.
I think you need to build some real towers for your fronts though, nothing too big, but these 8" ones seem perfect for a 12'x12' room:
http://www.partsexpress.com/projects...ah8/index.html
They will be a perfect sonic match to your surrounds... and now for a center channel, I recommend using the same 5.25" drivers and 1" tweeter that we talked about in the surrounds... just build the box along the same lines that you built the surrounds but big enough to put 2 of the woofers on the front panel, say 13"wide, 7"high, 7"deep.
The plan I've outlined for you get you some great sounding speakers at a great price, with just a little sweat on your part... but just following my advice won't teach you anything or let you know why you've built the things you have. I haven't talked at all about crossover points, driver specifications, porting, speaker placement, and zillion other things you should be considering.
You need to buy that book I recommended, or one of the other good ones on the page I linked so you can really understand what you're doing, and not why you're following the advice of someone who had nothing else going on, on a Sunday afternoon.
One more question, what subwoofer do you have?
I currently have the to front towers set up for 2 pairs in each tower and the rears for 1 pair each. What size mid should I be using for what? What size should my center channel speakers be? Do I wire the 2 pairs that are in the fronts together? Im a noob. Its my first project. Can you guys tell?