Best SPL combo?

Sup guys I have a friend who wants me to set him up with a slamming system he loves that deep bass and alarm setting bass, but he likes the way the RF subs look (he wants to match his car) But my question is what combo would give him the best results (4)10 P3 subs or (2)12 T1 he is running a Cadence Zrs 9 2000x1 @ 1ohm, 1000x1 @ 2ohm. Any opinions would help thanx guysjj

ummm personaily i dont like RF but i have a friend at work who has them he is fixing to get the t1's so i cant really tell you how they sound 89 Probe Gt Turbo

1 Diamond 15 CM3

1 Diamond 600.2 D5

Plans...

2 Diamond 10 CM3

1 1200.1 Diamond D5

4 Diamond 6.5 coaxial

1 300.4 Diamond D5

go with the t1 they are aoutragesly loud and very clear, just depends on what you want to pay,but for that amp go with 2 p3 12 run them at 1 ohm and get 1000 a piece will slam hard im getting at least 140db with one. if you want to go with just one sub go with the t1, nd run the 2000 in to it.that amp will also run a t2 pretty good.

I told him the same thing ,but my friend only wants to choose between the two sets I previously posted because he is getting a good deal on only those two combos I guess. So out of the two what would be the loudest? jj

go with the 2 12" t1 dual 4  so you can wire them to 1 ohm,