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pwr2max
12-16-2002, 05:47 PM
ok heres the deal i have 2 12 in subs and i am facing them up, since i have a hatchback. What happens if i put the subs close to one of the walls rather than in the middle? will it increase or decrease spl or sq? its gonna be a sealed box if that helps. thanx

pimpedoutblazer
12-16-2002, 06:19 PM
garanteed your 2 12's will hit harder if they are close together...

pwr2max
12-16-2002, 06:22 PM
by that do you mean to put the subs closer next to each other in the same sized box or make the overall box smaller?

pimpedoutblazer
12-16-2002, 06:24 PM
hold up... is it 2 different boxes or the same box that you buildin

pwr2max
12-16-2002, 06:30 PM
same box

pimpedoutblazer
12-16-2002, 06:32 PM
keep them bout 2 inches apart, inside a hollow box, and will give you tight bass sound

pwr2max
12-16-2002, 06:42 PM
will it make the spl any better?

pimpedoutblazer
12-16-2002, 06:44 PM
puttin them close together would, give the box a 2" - 2 1/2" port.... that'll help your spl

pimpedoutblazer
12-16-2002, 06:45 PM
my friend had a trans-am hatchback, with 1 square 12 and was hittin 165's all the time

pwr2max
12-16-2002, 06:47 PM
thanx

pimpedoutblazer
12-16-2002, 06:48 PM
oh... as if you was there

pimpedoutblazer
12-16-2002, 06:49 PM
np

crhye250r
12-16-2002, 08:09 PM
I just wanted to say about that port that guy said to use. A 2-2 1/2 inch port would in most cases, created unwanted port noise (whistle, etc..). I would go with a bigger port than that. Im not sure of your subs, or the power you will be feeding them, but if you provide me with the cubic feet of the box, the driver, the power at what resistance, and an SPL/SQ desired ratio, i can tell you what size port and everything you need. So, you can get back to me here, PM me, or email me, id be happy to help.

cifer721
12-17-2002, 04:54 AM
Originally posted by crhye250r
I just wanted to say about that port that guy said to use. A 2-2 1/2 inch port would in most cases, created unwanted port noise (whistle, etc..).

i agree... that port is WAAYYY too small for 2 12's

pwr2max
12-17-2002, 10:12 PM
ok im puttin 2 jl 12wo (8ohm) facing up (hatchback) and power them with 250 watts @ 4ohms. the box has to be at max 8.5 in high and 20.25 in depth. the max width is 38 in. so what size port(s) would i need? as far as spl and sq prob the maxium amount that these dimensions can allow, prob leaning a little more towards the spl side but still with decent sq so like 60spl/40sq.

violator5spd
12-17-2002, 11:25 PM
Originally posted by pimpedoutblazer
my friend had a trans-am hatchback, with 1 square 12 and was hittin 165's all the time

where was the mic at?

pwr2max
12-18-2002, 04:08 PM
thanx alot. i really appreciate it, just one thing are those dimensions including or excluding the box material? and whats the estimated db value for the spl?

Fender85
12-18-2002, 10:54 PM
Originally posted by pwr2max
by that do you mean to put the subs closer . . .

It's called acoustic coupling. 3db gain for each sub added as long as they are close together.