smallest recommended ported box

[jasperpso 10+ year member]

my custom sealed dual 12 box fits under my dodges rear seat..

there is about 5 inches between the cab wall and the box.

the volume is currently 1.1 cuft with subs installed per chamber. also there is about 3/4 lb of polyfill in each chamber..

i have room if i wanted to put up to a 3 in tube? out the back of each chamber, cut it at a 45 and run up to 24(or more) inchs towards the walls..

would this make it any lower? it is already plenty loud, and the SQ is great.. but if ports would bring it lower, great..

given what i have to work with, should i try it? if so how wide of tube? @ how long?

thanks for any help

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[jasperpso 10+ year member]

i am guessing from the lack of a response that it wouldnt be big enough?? anyone know? thanks

 

[wilzyx 5,000+ posts]

well a ported box is most always gonna be bigger than sealed for the same sub. so by adding that port you are making the box smaller by a lot. i wouldnt go ported just keep the box you have. what subs and amp anyways?

 

[jasperpso 10+ year member]

well i am not thinking about adding a port taking away from the volume.. the port would be external to the box.. 2 12 in assassins and a x600.1

 

[wilzyx 5,000+ posts]

well i am not thinking about adding a port taking away from the volume.. the port would be external to the box.. 2 12 in assassins and a x600.1

in that case the box would still be too small unless you went with like 8's. for 12's you would need at least 1.5-2 cubes each for ported. that space looks alright for 1 arsenal 10" though, and it would work well with that amp too, might wanna consider that.

 

[jasperpso 10+ year member]

nah, like it said it sounds AWESOME now.. the sealed box is louder then i will ever listen to it.. it is mostly just to gain some db's at 25hz.. and honestly, if this box isnt suited for ports, then i will keep it selaed and still love it.. out of all the setups i have owned or worked with, this one is unquestionably the best SQ.. and the SPL blows me away.. i was just in search of the lowest freq's.. i will live : )