Enclosure question (kicker L7 15s)

[aztecducky]

ok, so I currently have two kicker L7 15s running off a Quantum Audio QCA3000d (3000w peak)
however, the box that they are in (already HUGE for my small trunk) is not giving them enough cubes as it is only 40x20x17 inches and has two slot ports (one for each sub, tuned around 50-55hz) the subs are not sharing airspace or port space in the current box

my question is, would i be better off

1) keeping my setup as it is (i know this one isn't the good option)

2) building a custom box for the two of them (it would be about the same size) with one port and have them sharing airspace

or 3) building a box (again about the same size) for only one of them (so it could get optimum airspace) and selling the second sub?

the two custom boxes would have a slot/square port tuned to about 40hz

i am in a wagon so it's not in a sealed trunk

any feedback is appreciated, but buying other subs isn't an option right now. Thanks!

Robert

[DylanBunch]

Dude that box is small for 1. I'd sell one and port the other in a proper box. Also, what music do you listen to? Cause being tuned to 50-55hz is super high. Try 35-40 unless you like decaf. If you post the max dimensions, a guy on here named joe x could post a good design for 1 15 or if not him I can probably post something although it wont be as good as a joe x box

[aztecducky]

yeah, i know it's a small box. i listen to mostly electronic music and alternative (red hot chili peppers and stuff).

the box was tuned that high when i bought it with the subs, i would like it tuned 35-40 hz
and yeah that's almost the max dimensions anyways, max would be about 40x20x24, but one of the sides (40x20) would have to be slanted a little bit to fit against the back of the back seats

[john253a]

You have a wagon and only 20high and 24deep

You'll want to wall them to get the most out of them

I like to keep the port small

6net ea 80sq" of port at 37hz just seems to get theis to slam

With the music u lesion to you could go higher but I don't like over 40-42 as you'll loose to much low end and be less musical

Drop a pice of string with a nut or something with some weight (plumbon) down from the back of back seat and measure from where it touches the floor to the base of back seat

Then you'll have the measurement for the angle

I like to keep it straight as that a good place to put amps

But if you need the space then you need it

You'll def have to use more height and depth as your only got 9.2gross there

You will get away with it but more would be better

So idd measure above the wheel arches and even look at aero ports

[aztecducky]

yeah, i could maybe go a little higher, but i don't want it obstructing my view... and it's a 2003 jetta wagon (it's a small car lol) so 24 deep is pushing it... you're right about not using the angle though, for the amp.

however, i'm not looking to compete or anything, i just want a nice loud system (for daily use), but i don't want to get rid of one to have the perfect airspace if it won't be as loud as 2 with the same airspace. also, i'm not looking to do anything crazy (like walls or anything like that.

aero ports seem like a must for my situation, thanks!

[john253a]

So 24" is at the rear wall

If so sub and port need to be up

[john253a]

if you do 40x 22h x 24d (double baffle top)

sub up, port up

with 106sq" of port youll have 7.8net @ 37hz

port 22.5x 4.75x 10.5L

if you were to only use one would you get more or less output, im not sure, but i was happy with my single in 7net 90sq" port,

[Beanz]

Sell both and get two twelves in a proper box for them and you'll be happy

[john253a]

2x 12 will work better in that space, but isn't always an option

you can also invert the subs and get an extra 0.5 cuft

[aztecducky]

ok, it looks like i'm going to do john's setup, i will make enough space for two subs and a block off plate so i can decide if one is better than 2 in that airspace.