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Second Skin Audio

4th order for 1 12"


littlehitter

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Posted

Finally settled on a design for my trunk. I'm gonna do 2 4th order boxes in my trunk with 1 12" RE SEX in each. Both will have beauty panels and look like part of the trunk on each side. They will be ported into the car through the rear deck or the arm rest. That will be decided after I get some help with my numbers.

The box:

nrYrj.png

The sub will be mounted to displace the hexagonal box. Volume comes out to 1 cu/ft sealed, 2 cu/ft ported.

Is the depth of the ported section going to be a problem? The back wall of it is only 6 inches from the cone of the sub. I have no idea how that would effect the sound so any input will be appreciated.

And what size/length port would you guys recommend to tune to 32 hz? Gonna do all external preferably with flared PVC. The FS of the subs is 25.1 hz. I listen to everything. My decaf folder is usually what gets played in the car though. I'm not looking for numbers, but I want it to sound good, and give pretty good demos.

Running my pioneer GM-D8500M at 1 ohm, so I assume that the subs are seeing somewhere around 400 watts each.

I love these subs and this amp but I can definitely tell that with a better box than I am running it will be pretty crazy for the limited power.

Thanks for reading, I'll keep updated and maybe even start a build log if there is any interest!

Current System:

Clarion CZ702

Stock 5 channel amplifier

Infinity Reference 4022i 4"

GRS 6.5"

Audiopipe 1800.1

2 RE Audio SEX V2's In a 4th order ported though the armrest

2003 130 Amp Toyota Highlander alternator

Posted

Nothing? Need more info? Or just no interest?

Current System:

Clarion CZ702

Stock 5 channel amplifier

Infinity Reference 4022i 4"

GRS 6.5"

Audiopipe 1800.1

2 RE Audio SEX V2's In a 4th order ported though the armrest

2003 130 Amp Toyota Highlander alternator

Posted

Why do 2 separate 4th order boxes instead of 1 4th order with the 2 RE 12's inside?

2003 Kia Sorento

Team Subsonic Lows
Team Bassin' on a Budget


2016 Rebuild Under Construction

Best score: 150.2 at 40hz (3k, 2 Custom HDC3 15's) Usaci style(door open, in the kick)

Posted

I need my trunk space. There is a lot of space hidden behind the carpet panels on the side of the trunk. So I want to utilize it. With a 3 year old and another due in march Im gonna need most of the trunk. Just trying to make due with what I have. Is there something wrong with doing it this way?

Edit: If there was a way to fold the seat down one box would be my plan, but there just isn't a way to make it work. I think if I take my time and make it clean it'll turn out to be a pretty unique install. I'm happy with the equipment I have, I just know it can sound even better

Current System:

Clarion CZ702

Stock 5 channel amplifier

Infinity Reference 4022i 4"

GRS 6.5"

Audiopipe 1800.1

2 RE Audio SEX V2's In a 4th order ported though the armrest

2003 130 Amp Toyota Highlander alternator

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