RE's box Calc.

[07BronzeFuz 10+ year member]

Guys I built a box from the design on RE's website.

Its 35 inches long, 16.5 wide and 13.1/8 tall. The slot port is 2" & 15/16th inches wide and 12 inches long.

Thats about 3.0 cu ft before subs and tuned to 36 hz. The only problem is the box is not dropping that much. Its pretty loud. I have some air coming out of where the top meets the sides. I dont think I used enough wood glue, but I did use caulking. Any suggestions.

How would it compare to if I went a little bigger like 3.5 cu ft with a 3" port tuned to 33 hz, in theary wouldn't that be less loud?

The subs are facing up to the trunk and the port is facing into the cabin, and the box is all the way back in the trunk. Its far louder this way with the seats down.

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[altoncustomtech 10+ year member]

First problem is the air leak! FIX THAT first...... then retry

 

[jake760 10+ year member]

What subs?

 

[mazdakid 5,000+ posts]

maybe try facing the port a different way. if the re calculator said 36 then its probably around 37 or 38hz.

 

[07BronzeFuz 10+ year member]

the subs are powerbass xtreme evloutions. Will it be as loud if I tune it down to like 32-33 hz.

 

[Kern417 10+ year member]

the subs are powerbass xtreme evloutions. Will it be as loud if I tune it down to like 32-33 hz.

Everywhere I have read to tune it 1-2 hz lower on the RE Calculator for it to come out right. also you'll want to add a angle peice in the back corner of the slot to make sure the slot width stays as constant as possible.

And definitely fix the air situation. put on the baffle last if you can and then you can reach in through the hole and caulk the inside baffle board