anyone running hdc3 15's in 4th order?

[spencer321 10+ year member]

just curious what your sealed chamber volume / vented chamber volume / tuning is per driver. considering 2 hdc315's in a blowthru in the truck on an aq3500d, i've got a hdc312 on a bxi2006 right now but i want more.

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[jdawg 5,000+ posts]

sell me your bxi2006, pm me

 

[spencer321 10+ year member]

bump

 

[mlstrass 5,000+ posts]

why not a large ported enclosure?

 

[spencer321 10+ year member]

why not a large ported enclosure?

blow thru, i want to put a cap on the back and blow threw the window with accordian gasket, don't want to cut cab.

i designed a 4th order for 4 sonance 15s, 10.6 cubes sealed, 6 cubes vented @ 43hz gives me an F3 of about 27hz on the bottom side and 68hz on the top side with a 1.5db gain from 35hz to 45hz

but the specs on the hdc3's posted are aluminum coil, i was going to do copper, doesn't do me alot of good.

i do have a question about these 4th orders, the side thats vented, do you follow standard port sizing? for instance if my vented side is 6 cubes do i still just follow 14-16 in^2 per ft^3?

 

[BigJoker 10+ year member]

blow thru, i want to put a cap on the back and blow threw the window with accordian gasket, don't want to cut cab.
i designed a 4th order for 4 sonance 15s, 10.6 cubes sealed, 6 cubes vented @ 43hz gives me an F3 of about 27hz on the bottom side and 68hz on the top side with a 1.5db gain from 35hz to 45hz

but the specs on the hdc3's posted are aluminum coil, i was going to do copper, doesn't do me alot of good.

i do have a question about these 4th orders, the side thats vented, do you follow standard port sizing? for instance if my vented side is 6 cubes do i still just follow 14-16 in^2 per ft^3?

ask DJ

 

[spencer321 10+ year member]

ask DJ

good idea, whats his username?

 

[skmfkr 5,000+ posts]

Djl

 

[spencer321 10+ year member]

Djl