Which type of port???

[FreekDesignz]

Which type of port and tuning would slam the 33-21Hz range??not so much sq.

[FreekDesignz]

TTT

[fritosaregood]

depends on your box.....

I would say a flared slot port,

If you just want that range alone i would do something like 16 to 24 sq inches of port per cube, depending on the subs tuned around 20~23hz

but that would most likely suck on anything above 35~40hz

if you want something that is musical that will still go down that low it would say again a flared slot port

tuned to 30~33hz with 10~12 sq inches of port per cube

[FreekDesignz]

My subs are designed for 2ft^3 sealed and 3.25ft^3 ported. I have four of them and already have the box built to 13.21 ft^3 after bracing subs and 45's. My subs are rated 600wrms each. I'm going to be putting 650wrms on each.

[fritosaregood]

15s? what kind?

well with 13 cubes after disp. if you go with 16 sq inches of port at 23 hz your port is gonna be 70 inches long and almost 9 cubic feet.

if you do 24 sq inches per cube at 23 hz youll be at 110 inches long and about 20 cubes.

both of those will most likely not fit and only be good in that range you said.

but for more musical

12 sq inches at 33 hz, youll have a 24 inch port only taking up a 2.16 cubes

[AMI CUSTOMS]

Since you have Kicker squares 12's, design the box like it was for 15's since that is about the cone area you have, You need alot of port area for 4 and it would need to be pretty long, don't do aero's so one big ass slot port. Just use a slot port calculator, there is one on this site and 12volt has one too. But it is gonna need to be long, I can tell you that. Give me your exact dimensions and I can figure it for you if you are lazy.

Edited November 9, 2010 by AMI CUSTOMS

[FreekDesignz]

Since you have Kicker squares 12's, design the box like it was for 15's since that is about the cone area you have, You need alot of port area for 4 and it would need to be pretty long, don't do aero's so one big ass slot port. Just use a slot port calculator, there is one on this site and 12volt has one too. But it is gonna need to be long, I can tell you that. Give me your exact dimensions and I can figure it for you if you are lazy.

naw... im not lazy i use Torres box tuning calc

[FreekDesignz]

15s? what kind?

well with 13 cubes after disp. if you go with 16 sq inches of port at 23 hz your port is gonna be 70 inches long and almost 9 cubic feet.

if you do 24 sq inches per cube at 23 hz youll be at 110 inches long and about 20 cubes.

both of those will most likely not fit and only be good in that range you said.

but for more musical

12 sq inches at 33 hz, youll have a 24 inch port only taking up a 2.16 cubes

Alright i was looking at my box calculator and what i said before was wrong. i forgot that i added the port to the over all disp. here is the real specs

outer specs w/o bracing

H = 21

W = 50

L = 26

1" wood

I can go up to 32" long if i wanted

Edited November 9, 2010 by thafreek

[Socky]

Well i did a 4th order bandpass to crush those tunings. I tuned my at 33hz 5.5 cubes ported and 1 cube sealed for my 15, and it crushes the lows from 35-21, its the hardest from 26-30, really feel the pressure change at 28hz. Its a diamond audio d3 15, in my room on 250 rms.

[FreekDesignz]

Well i did a 4th order bandpass to crush those tunings. I tuned my at 33hz 5.5 cubes ported and 1 cube sealed for my 15, and it crushes the lows from 35-21, its the hardest from 26-30, really feel the pressure change at 28hz. Its a diamond audio d3 15, in my room on 250 rms.

i had my kickers in my room and they didnt sound as good as they did in my truck