To OP,you noticed who was at the top of the list.....be smartDigital DesignsIncriminator audio
Atomic
DC sound labs
Cascade Designs
RD audio
RE audio
T3 audio
Audioque
FI car audio
Acendent audio
American Bass
just to name a few
not all out spl for compitition i dont know enough to do that but i am going to be able to give the subs 2000 rms each x4 and you all have shown me some nice subs to look at so far i liked the dc sound labs. the interior of the truck is going to be 2" tounge and grove wood flooring all around its not a concrete wall but still should let me produce some decent pressure.is this going to be an SPL comp vehicle or daily driver that will do some comps?
AQ HDC 18's are on sale for $249 each and will get very loud in a daily set up. For all out comps DD does very well in the lanes...