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View Full Version : someone please help me design a box!



954runner
06-13-2006, 12:00 AM
the box i have right now is about 4 cubes tuned to ~25 Hz.

i didnt build it right, and im not really pleased with my SPL score. not that im really in to SPL, more of SQ, but i would like to at least break 140db.

i have a 15" Diamond Audio D9 powered by a JBL bp600.1 @ 2 ohms = 600 watts.

im going to go with a sealed box when i compete in SQ (got that in the works)

and id like a ported box for when i "try" for SPL

going to use a 6" aeroport
MAX DIMENSIONS are:
height: 18"
depth: 16"
width: 34"

tuned to about 38 Hz
maybe around 3 cubes? idk, just make sure that it will be LOUD! (for me :) )

(ps... have $$$)

springy101
06-13-2006, 12:02 AM
first off your retarted for tuning it so dam low, second trim some length off that port to get it to around 32hz

LeofromtheH
06-13-2006, 12:03 AM
aren't those d9's 1000 rms?

954runner
06-13-2006, 12:03 AM
first off your retarted for tuning it so dam low, second trim some length off that port to get it to around 32hz

kthnx idioth.

first time designing my own box.

954runner
06-13-2006, 12:04 AM
aren't those d9's 1000 rms?

yeah

springy101
06-13-2006, 12:18 AM
kthnx idioth.

first time designing my own box.
i'm the idiot? your the one who cant get loud with a freaking d9, *******

954runner
06-13-2006, 12:19 AM
i'm the idiot? your the one who cant get loud with a freaking d9, *******

gtfo. bye bye

Worlddre
06-13-2006, 12:20 AM
slot ported or not?

Flipx99
06-13-2006, 12:23 AM
I always thought lower tuning = longer port.

I think there used to be a free site that designed boxes (slotted)

go to psp-inc.com and there is a port length calculator although I don't know if box volume is net or gross.

Worlddre
06-13-2006, 12:54 AM
if noone does your box design before i sit back down ill do it

954runner
06-13-2006, 01:20 AM
slot ported or not?

6" aero

iamamp3pimp
06-13-2006, 01:54 AM
first off your retarted for tuning it so dam low, second trim some length off that port to get it to around 32hz



I hit higher than what he is hoping too, tuned lower than he is

hes not retarded, he just liked the lows.

HincklNutt
06-13-2006, 02:00 AM
first off your retarted for tuning it so dam low, second trim some length off that port to get it to around 32hz

he's far from retarded, big low tuned boxes are where its at IMO:naughty: call me retarded if you wish.

the brahmas going in 3cubes@25Hz soon:naughty: should sound awesome. my B-15 was in 5cubes@20Hz for a few months, and it was insane. best sounding/lowest box ive ever had. awesome setup. it god extremely loud too. just because its 20Hz doesnt mean you wont have output

oh yeah, and you should be able to tune it a fair amount higher if you trim some port off, it might be difficult though seeing as the box is already put together

954runner
06-13-2006, 04:35 AM
yeah ive been thinking about trimming the port, but if i do that i might as well just build a new box anyways. i like the low tuning, but with no subsonic filter on my amp, my sub ends up bottoming out etc... i figure if i seal it up for SQ i can still harvest some low end, and if i tune 'somewhat' high i can play louder and not worry about bottoming out like i do now.

i like the sound that im getting now with the low tuned box, although some of the upper bass notes (70-80 hz) are a little out of its range

springy101
06-13-2006, 05:30 AM
I hit higher than what he is hoping too, tuned lower than he is

hes not retarded, he just liked the lows.


he's far from retarded, big low tuned boxes are where its at IMO:naughty: call me retarded if you wish.

i see what you are saying, but you guys know what you are doing, he doesnt. he just wants to get loud and tuning that low with the little knowledge this man has wont do that. hes only powering it with about 700 watts, he should be doin double that.

LeofromtheH
06-13-2006, 05:37 AM
he's far from retarded, big low tuned boxes are where its at IMO:naughty: call me retarded if you wish.

the brahmas going in 3cubes@25Hz soon:naughty: should sound awesome. my B-15 was in 5cubes@20Hz for a few months, and it was insane. best sounding/lowest box ive ever had. awesome setup. it god extremely loud too. just because its 20Hz doesnt mean you wont have output

oh yeah, and you should be able to tune it a fair amount higher if you trim some port off, it might be difficult though seeing as the box is already put together

i'm witchya on that one, 15 L7 in 6 cubes @ 30 getts lowww, like lil jon get low:hide:

Worlddre
06-13-2006, 12:42 PM
6" aero
just one?

954runner
06-13-2006, 07:16 PM
yeah just one 6" aero.

Worlddre
06-13-2006, 07:18 PM
are you getting any port noise now? seems like a small amout of port area

954runner
06-13-2006, 07:22 PM
are you getting any port noise now? seems like a small amout of port area

small amounts. right now i think its 3 X 20 so about 60 sq in.

my friend had only one 6" aero on an RE destroyer and crossfire VR2000D. no port noise. should be ok.

Worlddre
06-13-2006, 07:49 PM
18" x 16" x 30.5"

10.5 inch long 6" Aero port

tis a little over 3.5 cuft tuned to 38hz as requested

iamamp3pimp
06-13-2006, 09:18 PM
i see what you are saying, but you guys know what you are doing, he doesnt. he just wants to get loud and tuning that low with the little knowledge this man has wont do that. hes only powering it with about 700 watts, he should be doin double that.
ill agree with that.

the lower you tune, the less need you have for an SSF.

the SSF is like an HPF for subs pretty much, it cuts out the bass that you do not want to pass through.

the higher you tune, the higher the chance of your sub bottoming out on the lows.

954runner
06-14-2006, 02:05 AM
18" x 16" x 30.5"

10.5 inch long 6" Aero port

tis a little over 3.5 cuft tuned to 38hz as requested

you are the man :)
thanks for the sub by the way!
does it really matter which side the port goes on? should i put it on the same side as the sub or is it ok to have the port facing up?

Worlddre
06-14-2006, 12:08 PM
since its an suv you can always go crx style and fire sub up and port at hatch