18" Q box design help

[squid88 10+ year member]

alright I'm trying to figure out what I would be the best fit for me bc I have an ext cab truck with the dimensions of ht-26", width 20" and length 40" so how many cubic ft could I get out of that? If I'm doing the math right I think its like up to 11 ft, is that right and I want it tuned to 28 so how much would I end up having after port and sub displacment. I also listen to alot of rock so do you guys suggest any other plans? Some designs would be nice

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[BrianChia 10+ year member]

The max internal volume for single layer walls would be 10 cubic feet.

You'll probably be able to get about 7~8 cubes for the driver. The port will require around 2 cubes.

 

[dvrmstrng 5,000+ posts]

i dunno if i would tune to 28htz for rock music.....thats just me personally...i had one ported in 7 cubes tuned to 28 htz and it killed rap music but you need a good front stage for it to blend for rock music....just my opinion though.

 

[squid88 10+ year member]

alright thanks man just one more question if I were to use a flared port instead would I be able to get more volume

 

[squid88 10+ year member]

so what would be a better choice for a mix of rock and rap I wanna have the ability to get loud but at the same time be able to listen to rock, I've never really heard a "real" sub so I don know what to expect all I've had is 2 12 " l5s

 

[dvrmstrng 5,000+ posts]

what kind of components are you running up front?

 

[squid88 10+ year member]

nothing now still saving up for those, I was held up bc I don't want to run into power issues since I'm already running a kx 1200 on a stock Alt so I figured it wouldn't be such a good idea until I can upgrade that so another amp probably wouldn't be smart right now