box build for 15 inch kicker L7

[ThreehundredC]

i was hitting good in the 29-39 40+ and 26- no good play mostly decaf and if not its other chopped n screwed stuff but when i switch to a radio song or something higher it isnt as hard

last time i use a 1.25 extension instead of 2 was thinking of going to 2 inch now but im going the wrong way i guess

[Joe X]

i was hitting good in the 29-39 40+ and 26- no good play mostly decaf and if not its other chopped n screwed stuff but when i switch to a radio song or something higher it isnt as hard

last time i use a 1.25 extension instead of 2 was thinking of going to 2 inch now but im going the wrong way i guess

You can do this slight mod:

Enclosure Specifications:

Fb = 33.6 Hz

Vb = 4.5 ft^3

External Height = 17 in

External Width = 31.5 in

External Depth = 24 in

Port Width = 4 in

Cut Sheet List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

Front = 26 3/4 x 15 1/2

Front Internal = 25 1/4 x 15 1/2

Back = 31 1/2 x 15 1/2

Left & Right Sides:

Side 1 = 22 1/2 x 15 1/2

Side 2 = 23 1/4 x 15 1/2

Top & Bottom = 31 1/2 x 24

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 15 1/2

Note: there's no extension and the port is slightly wider.

[Reed Farrar]

the box sounded good. only had it on like 400 watts and wasnt that loud. no surprise but the box wouldnt fit in my brothers car so im selling it now.

[Reed Farrar]

i was hitting good in the 29-39 40+ and 26- no good play mostly decaf and if not its other chopped n screwed stuff but when i switch to a radio song or something higher it isnt as hard

last time i use a 1.25 extension instead of 2 was thinking of going to 2 inch now but im going the wrong way i guess

You can do this slight mod:

Enclosure Specifications:

Fb = 33.6 Hz

Vb = 4.5 ft^3

External Height = 17 in

External Width = 31.5 in

External Depth = 24 in

Port Width = 4 in

Cut Sheet List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

Front = 26 3/4 x 15 1/2

Front Internal = 25 1/4 x 15 1/2

Back = 31 1/2 x 15 1/2

Left & Right Sides:

Side 1 = 22 1/2 x 15 1/2

Side 2 = 23 1/4 x 15 1/2

Top & Bottom = 31 1/2 x 24

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 15 1/2

Note: there's no extension and the port is slightly wider.

oh and thanks joe x you are so helpful every box i have built have been from your plans and they all sound great. building the new box for 2 sundown e8v3s that you designed from some other guy on here

[ThreehundredC]

yea im rebuilding a joe box because it worked well but sorry it was to big reed i gotta slide my floor panel out and get this in then wedge it back under the box once its in but t least no one can snatch n run with it

so all you changed was port width and no L extension? i have it cut up and half way built with 45s this time i left out last time have back side and bottom so can still modify the front n port peices

[ThreehundredC]

cut a qtr inch of the front and line up port wall with that got it, what does that do

[ThreehundredC]

how big are the 45s i made em all 3 inches maybe smaller?

[Joe X]

Yes, the baffle walls would need to be cut 1/4" more than before as you have done and there would be no extension as you say, ALSO the port wall will needs to be reduced a bit.

These changes will tune you about 1.5 Hz up. it's a very slight change to balance bass a little. The 45 inside the port should be done in a way that the port width stays the same as in the rest of the port, that is 4", here is a pic to take a look:

The 45 on the opposite side can stay the same size as you did before.

[ThreehundredC]

almost finished letting some stuff dry before i put the top and then cut the sub hole

since ive made this box (kinda) before i decided to try to make this a little nicer with the 45s i skipped and painting the port before i assemble it with a roller rather than a whole can of black spray paint that still showed wood thru

[john253a]

Idd only the 45's in the port and not the box to get the net up

And if you want to increase the freq range build a bigger box with a higher tune