I bought (2) 15" Kicker Solobaric's Dual 4ohm (the chrome ones) after ditching my 4 audiobahn 12's and amp. I wasnt satisfied with SPL or Deepness, so I got these hoping they will be alot louder than the 4 12's (audiobahn 12**N natural excursion series).
I'll be powering the 2 15's with 900watts RMS each 1800 peak from a Class D amp.
Now that you know all that I have a few Q's.
1. I've been thinking about having a vented box built to around 40hz since my amp's lowest Bass Boost Frequency is 40hz, good move if I want Loud DEEP Bass?
2. I've been thinking about 3-4 L7 15's in a sealed box, would 2 15's in a vented get louder than 4 sealed? The sealed box would be close to 1.8cf per chamber (2 subs).
3. Vented or Seal whichever way I go, would polyfill make me lose SPL? or would it be good in my case?
BTW whatever I decide it has to fit into a 96 Impala SS, and the biggest dimensions I could probably go is 14" deep, 60" wide (outer diameter)..
If you guys could help me it would be really appreciated.
in theory you gain 3dbs per extra sub and 3dbs per each ported box so 2 L7s ported would get just as loud as 4 L7s sealed..anyways like scott sayed those subs are pure SPL just port them...tunign the box around your frequency from your amp sounds like a good idea 2 me