How to downfire a sub

[PESteele 10+ year member]

more help please

 

[xluben 10+ year member]

don't know the specs on the sub, but:

http://www.partsexpress.com/resources/downfire.html

other than that, i'd just do it. just make the feet tall enough for plenty of excursion, and don't seal it to the floor.

 

[PESteele 10+ year member]

ok ill probably go up to the to of his seats with the box and then have the bottom raised up about 1.5-2 inches

 

[CELLERBR 10+ year member]

If I am not mistaking (and someone correct me if I am) I am pretty sure when down firing the best way is to use 3 "walls" as legs (basicly leaving one opening facing whatever direction works best in your setup) and the sub should be off the floor aprox. a height of double the one way XMAX of the sub. So basicly if you your sub has an XMAX of 20mm (.79" roughly) your legs or "walls" should be roughly 1 1/2"-1 5/8" tall.....

 

[xluben 10+ year member]

and putting it on the seats probably won't work well

the padding in the seats could absorb the acoustic energy (destroy bass) instead of coupling it to the floor of the car (enhance bass)

 

[ultimate157 5,000+ posts]

I designed my own custom shaped box for my wrangler. Then I sold the wrangler and bought a cherokee

Its narrower at the top and wider at the bottom. 2 cubes net, 1 chamber for each sub. That sounded real good in my wrangler, and with the hard top on it just slammed (cabin gain ftw)

 

[Bolognablake 10+ year member]

 

[Bolognablake 10+ year member]

The biggest I've seen in the rear seat have been 10", so I doubt the Atlas would fit in there. I was just throwing ideas out.

 

[PESteele 10+ year member]

thanks that helps alot. Ill post some pics whenever i get around to start building it

 

[zthumper 10+ year member]

z thumper how do you like yours downfiring

Sounds good, not great, but good....it can be kind of loud. I like it downfiring but i think if i build another box I am going to make it different.

 

[PESteele 10+ year member]

well their cvr's which are good subs but not great ones