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Posted

did you try putting in zero for L2 b/c you dont have to have an L2

1 Fi Sp4 18

Crescendo 2k

selenium mids

audioque supertweets

Hifonics for mids and and highs

1/0 power and grounds

---> on the way singer alt and possibly another

2k depending how sub likes 1 2k

Posted

No I didnt try that

1997 4 Runner

Alpine CDA-9886

4 Fi Audio X Series 12's

1 Crunch GP3000D Pro

DC Power Inc. Alternator(Kickin out 15+ volts!)

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Posted (edited)

ok for 35hz now

same outer

5.75" wide port length of 20" with actual port piece 17 7/8" long

tuned to 35.05hz

7.033cuft

12.67sqin/cuft

1.75cuft/sub

better?

the re still wont account for sub displacement... so decrease the box size until the net cuft decreases by the total displacement of the 4 mtx jh45s... thats the way around it not counting sub disp... just shrink the box to figure out what it will actually be tuned to

Edited by decafcappucino

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Posted

Thats fine, now I just need a cut sheet lol, thats one reason why I used the RE calc. it told me exactly what pieces needed to be cut, and how big lol

1997 4 Runner

Alpine CDA-9886

4 Fi Audio X Series 12's

1 Crunch GP3000D Pro

DC Power Inc. Alternator(Kickin out 15+ volts!)

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Posted (edited)

(2)38.5*28 top & bottom

27.25*15.5 left

26.5*15.5 right

38*15.5 back

32*15.5 front

17 7/8*15.5 port

7cuft@35hz :give_rose:

edit* can anyone tell im bored today.. lol

Edited by decafcappucino

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Posted

Thanks man really appreciated, so there is no L shape to the port?

1997 4 Runner

Alpine CDA-9886

4 Fi Audio X Series 12's

1 Crunch GP3000D Pro

DC Power Inc. Alternator(Kickin out 15+ volts!)

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Posted (edited)

nope... so put a 45 in that corner where it would have turned 90 degrees and that should help alot

if ive done my calculations right the widest part of the 45 degree angle piece should be 5.65" so just round to 5.5"

that way the leading edge of the 45 starts ~6" after the port piece ends... if that makes any sense... should direct air a little better

Edited by decafcappucino

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Posted

Alright thanks man, Hopefully I can start on this monday

1997 4 Runner

Alpine CDA-9886

4 Fi Audio X Series 12's

1 Crunch GP3000D Pro

DC Power Inc. Alternator(Kickin out 15+ volts!)

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