I recently upgraded my system from 2 12's to 4 12's. i got the same subs, the same amp, same amp kit, same speaker wire, same box, new optima yellow top battery, the whole nine yards. In doing so i havent really made a drastic sound improvement. my 2 12's i had hit very well and i thought i could just duplicate everything and i would be fine, but thats not the case. yes the system is louder but it is not shaking your eyes out of your head like you would expect. my setup is... 4 08S12 kicker L5 12's 4 ohms each, wired as pairs down to 1 ohm. 2 subs per amp. the amps are 2 orion 1200D amps. so my dilema is, why am i not getting the bass resonse i was expecting? is it a signal problem? H.U problem? encloser problem? the enclosers are 2 5.68ft3 tuned to 30hz. i had to use y splitters coming out of the head unit because my output on the amps keep giving me a 32Hz humm coming from the 2nd amp. i really am stumped, i know this alot to take in, if i can get some input i will try to explain it better... thanks for any help i get.
