Putting a port in a 7cuft sealed box

 

New member
Username: Snacks

Quincy, Florida USA

Post Number: 1
Registered: Jul-08
I built an offset sealed box for 2 kicker 12" Comps. I used the dimensions in the manual and built the max sound or whatever. it came out to be 7 cubic feet. I bought 2 Kicker CVRs recently and put them in and since my amp couldnt handle a 1 ohm load i wired them at 4 (1200w performance teknique)

What I want to do is try to port the box so i dont have to buy another amp and just push a safe amount of power to the subs.

for the 7 cu ft, i was wondering maybe 2 round ports, 4" diameter by 20" deep, one on each side of the box. any suggestions?
 

Gold Member
Username: Southernrebel

Monroe, Louisiana 2 DD3515s, 2...

Post Number: 6524
Registered: Mar-04
What are you boxes internal dimensions?
 

New member
Username: Snacks

Quincy, Florida USA

Post Number: 2
Registered: Jul-08
should be 3.5,99.1
 

New member
Username: Snacks

Quincy, Florida USA

Post Number: 3
Registered: Jul-08
help???
 

Gold Member
Username: Somedonniedude

Illinois United States

Post Number: 1858
Registered: May-07
7cf is way to big! I think you are better off building a new box IMO.
 

Platinum Member
Username: Rovin

1 15 = 149.5 DBsTrinidad & T...

Post Number: 14016
Registered: Jul-05
post pix & external dimensions of ur box ...
 

New member
Username: Snacks

Quincy, Florida USA

Post Number: 4
Registered: Jul-08
this is it with the 2 comps.
ive already switched them out with the cvrs
someone recommended trying 3 4" ports at 10" long since the 2 4"x20" would be tuned too low. does that sound about right?
Upload
 

Silver Member
Username: Deadrabit

Post Number: 598
Registered: Jun-07
use this. and tune to 40 Hz.
is there a devider in that?
not really sure were to place the port the way they are setting
 

New member
Username: Snacks

Quincy, Florida USA

Post Number: 6
Registered: Jul-08
I put the ports in today :D we decided since we originally came up with 2 4x20" ports and another 'experienced builder' recommended 3 4x10 that we'd go right in the middle and do 2 4x15" ports.

on the left side it sits right under the sub and on the right its right over it about two or three inches from the edge on top and bottom and it sounds beatiful :D :D :D i havent been so happy with my system in years
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