i love them personally. i have my 2 12"s in a 5cu box tuned to 34hz running them off a kicker kx1200.1. they get loud, they move hella air, and they make everything rattle an shake. they play the low end very well. i havent got mine metered yet, but i know they are so much more louder than my memphis pr 15's an i did a 141 or 142 i cant remeber. it was sealed an ran off 600watts. never heard type r's in a good setup so i cant compare the two, but i would imagine they are as good if not a little better. next to the type r, i dont think you can get any better for that small a price. i got mine from hifisoundconnection.com for 180 a piece. i say buy them, you wont be dissapointed.