I have officially gone bass crazy. My current plan, if I can make it clean, is to put 2 1803s and 2 pr-18s (if i can find them, suggestions on where to buy some?) in a my HT. My HT is just a corner of my basement and is completely wide open so the sound has a lot of space to go everywhere. I can not decide whether to put all of the subs into 1 rather large box. Basically a 40''W x 40''L x 24''H box with a 20'' W x 20'' x 24'' H section cut out. In the box (where the cut out is) would be the pr-18's and on the outsides of the cutout would be the 1803's each with a 8'' in diameter by about 40'' port (got to figure that out exactly), it should be tuned to about 18hz. Now that is my current idea and seems the best, 1 large box with everything in it. Should i go ahead with this or set up 2 boxes? BTW. this will be powered by a QSC RMS 2450 (I might actually change the subs because I want to run the amp @ 4 ohm but will not be able to with these subs).