OK, I put my brain in freewheel, and came up with this setup. I've got a bunch of PA stuff in addtition to my regular rig, and it could be combined to create this: In the center, a D-410XLT sitting atop a D-115XL. Then, cap that off with a D-210XLT. On either side of that stack, one JBL MR-818 18-inch sub. OK, set the Eden WT-300 on top of one of the subs, and use it to drive the 210 and 115. On the other sub, set a QSC MX-1500a power amp. Run the DI or pre-amp out from the WT-300 to the dbx crossover that shares the box with the QSC. Set the crossover at about 100 hz, and run the 18's off one side of the QSC. Take the rest (upper frequencies)of that signal, and run it through the other half of the QSC to the 410. The biggest problem I can foresee is that the subs will shake the amps off onto the ground. Any questions? Comments?