so here is my finnal idea on how to work my 4th order
all outside walls are 4" thick, inside baffle will be 1.5", maybe 2.25" if i need it.
all measurements on the pic are from external
i need 12cf on the sealed side, and with the subs on the ported side im looking right about 29cf before sub displacement
port measures 14" tall 40" wide and will be 8" long will be external and will be 3/4" board, and should be 8" long for 45hz tuning
the v will be 1" off the back wall to get me to the 12cf with each side of the v being 38" and meeting in the center.
going in the bed of a 96 ram 1500 standard cab short box
cabin is right about 60" wide, 45" tall and 40" to the windshield from the port
will be for 12 obsidian 12d4's on a rd D9 @ .66ohm for now looking to strap 2 @ 1.5ohm in the future
if any more info is needed just let me know, im just looking for some feedback before i put the center baffle in
here are obsidian's tsp's
Re: 4.0 Ohm
Fs: 33 Hz
Le: 2.21 mH
SPL: 85.4 dB
Sd: 490 cm^2
Mms: 243.1 g
all i could find was the d2 if i need the d4 tsp's let me know and i will email nick or jacob
Recommended enclosure sizes for the 12" are as follows:
1.0 to 1.75 ft^3 sealed.
1.75 to 2 ft^3 ported tuned at 30 to 35 Hz.
Mounting depth: 6.75"
Mounting flange to top of surround: 1.25"
Displacement: 0.16 ft^3
rd d9 @ .5ohm
2 sa Zv1's 5.8cf tuned to 48 or 32 with port plugs
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