which would be louder?

thankz, but what about the bandpass

i want the bass to travel

here are all the options

two 12" infinti kappa DVC subs 300 rms each in a bandpass

Two L5 10" ( also gettin 300rms each) in a sealed box made for them\

two apline type r 12" in bandpass(300rms each)

or two fosgate HE2 ( also gettin 300rms each) in a bandpass

or ONE L5 15" in a seald box gettin 600rms

i want a mix with SPl an good sound quality

and i'll be using a JBL 600.1 amp to push any one of the above systems

and have anyone here have experience with any of these system setups

Don't go bandpss unless the box is Specifically built for the Specific sub.  You can't just go out and buy a band pass box, and throw in a sub, , ,thats how you get explosions.

I know for shure alpine dosn't make the Type-R in a bandpas box, so im guessing your not looking at specifically built box's.

I can pretty much guarantee your system will sound like ass if you go with a generic box.    Go ported or sealed.

I have played with 2 Type-R 12's in ported enclosures tuned to 25hz and they were just obnoxiously loud with 150 w rms each.

I have 3 R 12's, in 1.25 qubes sealed each, running 1500wrms total,   i have one of the cheepest set ups in town, and i got 2nd at the last spl comp, 1st was 8 planet audios with 20 000 watts.  beat me by 6 db