sub placing, help? Options

[CelicaST_CALI]

ok well i know a few of yall here know a lot about this,i am planning on a audio system in teh trunk theres a pic of wat iw as thinking,is a 12" sub to big?I jsut wnat some input from u guyz on wat im thinking of.also is dynamat a good product,wat does it really do?Thanks!!(yes its a ****ty paint job but i havent used paint in like a year)





these are the subs im looking at:
Kicker CompVR 07CVR122
12" subwoofer with dual 2-ohm voice coils
12" subwoofer with dual 2-ohm voice coils
» injection-molded polypropylene cone
» ribbed Santoprene rubber surround
» suitable for marine use
» power handling: 50-400 watts RMS (200 watts per coil)
» 800 watts peak power handling
» frequency response: 25-500 Hz
» sensitivity: 86.7 dB
» top-mount depth: 6-1/4"
» sealed box volume: 1.0-4.6 cu. ft.
» ported box volume: 1.75-2.25 cu. ft.



ideas,comments,concerns?

This post has been edited by CelicaST_CALI: Sep 4, 2007 - 9:37 PM

[applejax]

Subs in a trunk can be difficult indeed.



What are your goals? How much trunk space are you willing to sacrifice? Have you determined how much air space you want to give the subs? Is your priority for it to "look like teh nizzle", or are you focusing on sound quality?



A 12 won't necessarily go deeper than a 10, but it will more more air. Two tens will more more air than one twelve. Two twelves will move more air still.



Based on the research that I've seen, you may want to put the sub against the rear, firing into the rear. This is where the reflections are closest in phase to the sound itself (again, based on reliable testing sources. I haven't measured this personally). This introduces a set of problems, though. Your trunk is going to rattle like crazy. It will be very easy for the bass to get boomy (although this may not be a problem for you. It would be for me.)



If your goals facilitate this, you may want to design a simple box (at least for testing purposes) whose dimensions allow you to flip it around to different spots in your trunk.



[Ditching my Dynamat ramblings. There is already information on the topic posted elsewhere that is quite good.]

This post has been edited by applejax: Sep 5, 2007 - 2:25 PM