Re: Get Your SPL Related Questions Answered Here!
I know this thread doesn't get much action, but ...
I was reading in the early pages that car peaks usually happen 4-10 Hz above your box freqs. If my cabin gain peaks at 53 Hz, I should make a few ports that span the range 43 Hz --> 49 Hz.
Is this a good plan, regardless of box volume? I was under the impression that tuning frequency for your peak changed with box IV.
Good rule of thumb mentioned was "port area" = Sd ... This makes more sense for SPL work, since we can use monster or tiny boxes, and tend to change them on the fly.
ex: 2 10's, it'll be ~100 sq in. much easier than 16 sq/cf.
1996 Toyota RAV4 - USACi Street Beat 1 (144 dB)
Subs: Pioneer Premier TS-W2501D4 x 2
Amp: Audiopipe AP15001D x 2
Box: 2cf @ 55 Hz 3-4" aeros
DC 200 amp alt + 2 deep cycles + Big 3 + 1/0 welding wire + gobs of Peel N Seal