lol, its like choosing which one is less worse //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
Ive had both subs, here is what ive found with each :
MTX : takes alot of power, but doesnt get all that loud for SPL. The cone on the driver is EASY to crack under stress of burps or even accidently dropping a screwdriver on it is enough to crack it. Good to moderate SQ on it.
HCCA : takes alot of power as well, has funky mounting screw holes that are non-standard when compaired to every other round sub of its size on the planet. Harder to get loud vs. other subs in its class/motor size....prob due to its suggested sealed enclosure nature. Why the hell orion decided to do that is beyond me //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif
This is just what ive found. By all means find out for yourself and learn a bit.