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Second Skin Audio

Decent box for 2 12inch Starsound comp subs


PurpleSnow

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Posted

I looking to get bit more out of my subs

the setup I've had for a while was ok but since i really started playing around i saw so many new designs in boxes

this is close to what i had in

s-l500%201_zpsxq10wl4r.jpg

W 35.4 x H 15.75 x D 15.75

ports 8 x 3

it played everything quite good

so for my first try i build this box but with the port at the top facing up into the cab

bottomportbox_zpsjl2syseg.jpg

W35.5 x H 15.7 x D 19.7

port was 2.7 x 12 x 12

it didn't play so good was quite a bit of distortion tried rotating in diff positions as well

I even tried lengthening the port down and in in L shape if im making sense but didn't do much good.

I then borrowed a box from a friend and so far it is the best one

697767_zpsbnmwlwi9.jpg

W 33.5 x H 15.75 x D 17.7

port 3.5 x 17.7 x 11.81

but now my question is there anything i coulda done better with my build.

my sub specs are

Starsound SSW-S12-3500 D4
Max output: 3500w
RMS: 800w
FS: 28.1
Re: 2x4ohm
Res: 92.7ohm
Qms: 5.5
Qes: 0.39
Qts: 0.37
Vas: 56.4L
Mms: 207.1
Cms: 0.15
BL: 27.2
SPL: 87.9
Xmax mm / in.: 25
mounting hole: 304-8 - 6.5
depth: 152mm
Sealed: 21-45 ltr
Vented: 45 ltr 90mm tube by 300mm
my amp is a bit small im only running 4ohm at the moment on the 2 subs cant do 1ohm unfortunateley
Posted

Your top and middle design looks like the port/ports were getting choked off at the rear of the enclosure.

That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.

Posted

Your top and middle design looks like the port/ports were getting choked off at the rear of the enclosure.

Your top and middle design looks like the port/ports were getting choked off at the rear of the enclosure.

the pics i posted were just exhamples not presice. the top one the ports were at least half the ;length of the box

Posted

697767_zpsbnmwlwi9.jpg

W 33.5 x H 15.75 x D 17.7

port 3.5 x 17.7 x 11.81

but now my question is there anything i coulda done better with my build.

This one would seem the better of the 3, should be around 4.4 net @ 25Hz, you should tell what do you mean by "best" though.

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