Anyone have any idea how to fit 3 12s in a trunk.

carfreak1024

the trunk is 32" wide at its max, the box cannot be any wider, you can get a max depth of about 22 inches, and a max height of about 15.5".

subs considering using are 3 12" MTX 7500.

carfreak1024 · Posted: Sun Nov 01, 2009 10:52 am Post subject:

is fiberglass the only way.

(...Rovin...) · Posted: Sun Nov 01, 2009 11:22 am Post subject:

y dont u do 2 subs & save urself from all that trouble .....

noyztoyz · Posted: Sun Nov 01, 2009 1:36 pm Post subject:

u can fit 3, with most surface area gone and little space for port > wasting time

2 in that space would sound better than the 3 fitted.

kurpal_v2 · Posted: Sun Nov 01, 2009 3:18 pm Post subject:

Sealed ftw

Soundstream_626 · Posted: Sun Nov 01, 2009 6:17 pm Post subject:

i had tried 3 12s when i had the 626 ... sounded liek ass ... i took out one and redid the box for 2 ... waaaayyyy better ... that was the loudest setup i ever had

noyztoyz actually talk sense there

theblitz · Posted: Sun Nov 01, 2009 11:10 pm Post subject:

I'm pretty sure you can get it to fit without glass and some imagination. With that space you really thinking of going ported with 3 subs? And if you going sealed then you may get greater output using only two ported as these guys suggested.

theblitz · Posted: Sun Nov 01, 2009 11:12 pm Post subject:

Don't forget that you mentioned max dimensions. You need to cater for material thickness and port, bracing & driver displacement. Damn thing creeps up on you if you don't pay attention lol

carfreak1024 · Posted: Mon Nov 02, 2009 12:42 pm Post subject:

alright maybe this might help meh case a little is a honda accord 2004 model i have.

what about doing a box like this i could build it in parts, maybe three seperate parts and then assemble it in trunk. And i realized if i take off the plastic case for the backseat locking mechanism i can go up to 17" tall.

carfreak1024 · Posted: Mon Nov 02, 2009 12:43 pm Post subject:

i should be able to fit it in here right, gi meh alyuh opinion nah.

TK! · Posted: Mon Nov 02, 2009 1:14 pm Post subject:

facing back .. or use a flat box, subs facing up ...
or four subs iso barick .. ports firing into cabin

there are lots of options ..

DJ Q · Posted: Mon Nov 02, 2009 1:39 pm Post subject:

slacker_jack · Posted: Mon Nov 02, 2009 2:46 pm Post subject:

how bout external port firing into cabin?

carfreak1024 · Posted: Mon Nov 02, 2009 3:49 pm Post subject:

so three subs all facing up, port firing through center console fold down in the backseat, with my little design to increase air space.

slacker_jack · Posted: Mon Nov 02, 2009 9:37 pm Post subject:

you mean +crease enclosure volume, rite? why not build the sides of the box slanted inwards? broader at the base & thinner at the top for the trunk hinges to pass.
but under all seriousness, that 3 2" idead sounding kinda like a longshot.

you young, you will learn from your mistakes. try the three & then try 2 ported, a simple face plate change will do the trick.

Soundstream_626 · Posted: Mon Nov 02, 2009 9:45 pm Post subject:

did u check to see how u getting the enclosure u designed into the trunk?

Firewall · Posted: Mon Nov 02, 2009 11:13 pm Post subject:

this speaker?

think that the min recommended volume is 1.45 cubic ported, so you basically looking at 4.5 cubic for all 3.

not impossible, cause the dimensions that you wanted to work with [2.6*1.8*1.3] working out to around 6 cubic.

with speaker and port displacement you SHOULD be right around 4.5 or a little more

i'd say a common chamber would be the easiest to design, but its not extremely difficult to get each in single chambers (just have to do the calcs.

this is what i'm thinking. (for all intents and purposes its to scale (just adjust the depth to account for the slant)

and you can port either on the front face or at the back (off center)

if you account for the slant (assumed 75 degree angle) you may be able to exceed the 22" depth be about 4-6"

noyztoyz · Posted: Tue Nov 03, 2009 8:26 pm Post subject:

u wont buy that speaker and put it in 1.45ft^3 > wasting time.

But if u got a 17" height this could work out, you could do one long slot port at the bottom.
and get the biggest box u could get to fit,
thats whats going to screw you on this experiment,
but it can work, i had a 11.5ft^3 removal box in my trunk already.

3stagevtec · Posted: Tue Nov 03, 2009 9:19 pm Post subject:

imo, such big boxes can get frustrating to work with over time.. what i would do is get a pair of high powered 10"s or 12"s or a single 15".. that way you won't have any issues getting the enclosure in / out of your trunk.. AND you will be able to use the correct volume to get max performance out of your speakers..

remember a pair of 12"s in their ideal enclosure can outperform 3 12"s stuffed into a small box..

maybe even consider doing 3 10"s..

Firewall · Posted: Tue Nov 03, 2009 9:52 pm Post subject:

noyztoyz,i'm sure that he can get at least 2 cubic for each speaker in that trunk