go with memphis mojos. i got 2 m3 12s and my car is to loud to sit in with the 1000 watt memphis amp and a ported box. you can get the m3s for about 550 to 600 new and they also have removable cones so if the warranty goes out you can just change the cone with 3 bolts or you can swap to any size you want at any time. dont look at rms on these subs..... memphis under rates everything and these subs will beat any w7 if your using decimal readers. trust me, their a must have, call and talk to a memphis dealer.
