I personally, dont care much for the Sony Xploid stuff. I bought a pair of 5.25" 3 or 4 way speakers to use in a pair of custom center channle spaeker boxes about 3 years ago. they sounded great with a pair of 3.25 1 way speakers on each box. Couldnt handle much though, regardless of the fact they were on the center channles of my home built, fully custom home system. mind you, I always had it very loud so they were keeping up with 2 pairs of 6x9s, 4 10" subs and another pair of 5.25s with 2 pre-amps running most of it. I have a friend who has 2 12" xploids hooked up to a huge kicker amp in a ported box. I dont think they sounded all that great although he loves them. they got loud and all, but as far as hitting those chest thumping, vision bluring notes, my single 12" MTX had him. I dont know all the details of his system or how he has it all set up so IDK if it just needed tuning or what. I think the biggest reason I dont like them though, would be how proud they are of there sony stuff. IMO its over priced and under rated. there "1200" watt 2/1 amp, is rated at a whimpy 125 RMS. There 600 watt 4 channle would be good for running 6x9s and 6.5's so I wouldnt mind having one for that purpose.