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Need Help Building A Box For 2 Alpine Type R 12's


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No, the box is not that big and really is not needed.... if you want you can put little biscuits in the corners or even do some fiberglass resign coating on the inside. that will make it stronger and get a lil louder.

03 Trailblazer EXT LT

In Dash

Rear Flip Down

Polk Audio Font & Rear Stage

Hifonics Zeus 4 Chan Amp

Hifonics Brutus Mono Amp

12" Rockford Fosgate Power HX2

T-Line tuned to 45hz

18"BTL T-line @31Hz (9 weeks pregnant)

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No, the box is not that big and really is not needed.... if you want you can put little biscuits in the corners or even do some fiberglass resign coating on the inside. that will make it stronger and get a lil louder.

ok I will probably just skip the braces then, I cant wait to hear what they will sound like in my car with this new design I hope it is quiet a bit louder :)

Eclipse

Hifonics

Alpine

Kinetik

Optima

Excessive Amperage alt

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um its right smack dab in the middle.

if you want to extend the port to 21" long it will tune it down to 32.4 hz. just remember to keep the vent 2.5"wide.

Edited by Clif

03 Trailblazer EXT LT

In Dash

Rear Flip Down

Polk Audio Font & Rear Stage

Hifonics Zeus 4 Chan Amp

Hifonics Brutus Mono Amp

12" Rockford Fosgate Power HX2

T-Line tuned to 45hz

18"BTL T-line @31Hz (9 weeks pregnant)

Link to comment
Share on other sites

um its right smack dab in the middle.

if you want to extend the port to 21" long it will tune it down to 32.4 hz. just remember to keep the vent 2.5"wide.

Thanks again cliff I will maybe try both port lengths and see which sound better in my car.

Eclipse

Hifonics

Alpine

Kinetik

Optima

Excessive Amperage alt

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