Anything wrong with this box

[SLIM3001 10+ year member]

Hi guy i made this box up for a friend for a 12 inch JBL sub can you tell me if you see anything wrong with it thanks. As he is saying it dont look right to him ?

PLEASE NOTE pic is to show how to make the box so not to size IE port placement

Cut list

Color Count Width Height

Top and Bottom Gray 2 x 24 inches 24.5 inches

Red 1 x 20.5 inches 13.5 inches

Yellow 1 x 23.75 inches 13.5 inches

Pink 1 x 22.5 inches 13.5 inches

Green 1 x 24.5 inches 13.5 inches

Deep Sky Blue 2 x 20.25 inches 13.5 inches

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[SLIM3001 10+ year member]

bump

 

[rpfuror 10+ year member]

I get just with the basic numbers more like 20 Hz tuning based on a 3" port.

What did the designer tell you about the box?

 

[SLIM3001 10+ year member]

Hi m8 i made the box for a friend but he is saying the port's dont fit when thay should do ?

 

[rpfuror 10+ year member]

hmm... the ports don't fit? The numbers are right, just doesn't look like the tuning it even close. What specifically are you looking to do?

 

[SLIM3001 10+ year member]

just a box to fit a 12 inch jbl sub tuned to 27hz.

What you think to this

Box

15 x 35 x 16 external

port 13.5 x 2 x 30

 

[rpfuror 10+ year member]

THat design equal ~

Net Volume: 3.15 cu/ft

Tuning Freq: 25.94 Hz

That's closer, but I would go with a little more port area.