Spldecendant
10+ year member
CarAudio.com Elite
Okay so my freind has 2 xl m1 15's on an ia40.1 now I really like the sq the new Rockford t2's have if I got 2 15inch Rockford t2's and ran a ia40.1 will it have a similarity in spl as the xl's. Yes I know the xl's can take more power and all but this is all on comparison on the 40.1
