I just got a 12 Q D2 with BP power hooked up with a JL 500/1. in a sealed 1.5(20*13*15.5) after sub displacement. is the amp to little for the sub? i set the amp to JL specs. and then i get clipping.

i've used the same amp on others subs and get better sound and more power out of it. but with ported boxes using the same JL specs. how should i set it with a sealed box?

jl 500 1 should not clip on a single Q.......... where are your settings?

jl 500 1 should not clip on a single Q.......... where are your settings?

I AM A go readjust now with DVM and 50 hz test tones and see what happens

is your sub wired in parallel?

If it is, try wiring it in series and see if it gets louder, those amps like higher loads, just like the highend JBLs.

Also gotta realize that you just went from ported to sealed so when you say it isn't loud, it's obvious as to why.

Ported is more efficient than sealed.

ok i got it. so i had it at 1 ohm decided to try 4ohms. then used the dvm and test tone to adjust it, now it dont clip. sounds good. all i need is a new amp to give it 1000rms

sounds good

Why did you get the BP option when you are running a 500 watt amp to it?