so each is working in 4.2cuft @ 25hz !? - so did u come up with this magical box volume & tuning combo ? cause they rec a 1.75cuft vol & R's Fs = 28hz .
i have each of mine in its own 1.65cuft 33hz tuned with 2 3" pipe ports & it slams so hard it makes my water bottle on the dash jump & with some songs its kinda hard 2 breath too ....
i prefer low bass i no they can pound way harder @ 35hz but i love low bass sql loud by ear an sound good far away an i made the box big as possible an i liked how they sound low later i might cut the port an do it @ 35hz an it pushes so much air its like a air conditional lol so in the summer ride around windows up wit da 5% tint an turn it up an it will b cool an dont gota waste power 4 the real a/c lol crack windows like 2inchs so they flex an push the air inside its sweet lol
my ho0d scop for my car still need 2 b moded an the fire bird with no rim on it an the system in it