Two 18's, 17cu, 30hz (bracing and glassing q's)

[SWIFT]

I figured up your box dimensions and port guessing 0.25 cubes displacement per sub (close enough, i can correct if you're anal about it).

to end up with a 30 hz tuning like you're looking for the port would need to be 26.5 inches long leaving you at 17.528 cubes after all displacements and 14.6 square inches of port per cube.

nothing about that box is wrong per say... but i personally would do it.. and damn sure wouldn't run 1500 watts per Q in that size box. Just be careful with it, you could easily overheat or bottom out a sub in it.

Thanks for your input!!

I just figured the box being in the middle of their optimal recommended volume with decent port area and tuned low would be a beast in the low 30hz range.

I can definetly go smaller on the enclosure just wanted to get the most from the setup. Not really looking for huge meter numbers just a lowend monster.

Thanks

Edited April 12, 2012 by SWIFT

[Ninja_v1.0]

fail

one liners = great!

[ALPINE408]

You want the smaller size of the box 6. Cubes each with that power

More power smaller box little power bigger box

[john253a]

[john253a]

1.5" all round, no extra bracing required

and you should be able to through close to full power at it

[SWIFT]

Looks killer, The one I did was subs on pass side, port on driver side. Does doing port in center change or effect sound at all. My truck peaks at 30-31hz BTW.

Thanks

[john253a]

I normally use this style if 2 or more amps are use

I only use common chambers if all on same amp

And on large boxes to elimate unnessery bracing and cost

This may suit you as no bracing is require

[SWIFT]

Ok here is my new design. I will go ahead with this one and should sound good on music the way my truck is. My last box was sub forward port to driver side and it hammered the lows. Looking for same results here just alot more of it. Not nearly as big as the other idea, lol

14.4cu at 29hz with 15in of port per cube

backs seats are out and it will replace this that I designed and built last year for a 15in FI Q.

This one was 3.6cu tuned at 29hz

Edited April 13, 2012 by SWIFT

[SWIFT]

Ok if I do my last design the subs will be 6in from the roof, I know I would not be able to access them without removing box but would this cause any other issues.

I could go subs forward but they may unload into the port.

I can basically go with the sub forward port forward design but will this produce the low clean loud sound I want without actually walling it off. Truck is way too nice to do that.

Beauty panels foam wrapped could give the wall effect but will that suffice with no major seal

[HunterJohnson]

^ that enclosure looks good.