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View Full Version : 4th order w/ DD 9515 and kx2500.1



Scotty2Naughty
08-18-2009, 08:43 PM
Well I got a new car, a 04 Corolla and now I need to build a sub box. I have already ran a DD 9515 forward firing in a taurus off a KX 2500.1 with the trunk seal off. It worked quite well with the seats down but with the seats up it lacked in output. I am now looking into putting in a 4th or 6th order (I doubt I have room for a 6th) with 2 6" ports through the 6x9 holes. I just need help with box sizes, I will probably have to build the box inside the trunk but I have from about 3.8 cubes to about 5.6 cubes to work with, I need bass that hits pretty low (I love Young Jeezy) and isn't too peaky. I will be going to college with the car so I want a bit of trunk space. Throw out some sizes that I could use that would work out and throw some comments out about putting a DD 9515 in a bandpass.
Thanks

iamamp3pimp
08-18-2009, 11:28 PM
in a 4th order......1.4 sealed and the rest ported tuned in the 52 hz range

80INCHES
08-19-2009, 04:09 AM
Agreed

80

Scotty2Naughty
08-19-2009, 03:34 PM
Could I get away with 2 4" ports? I don't really know the rule of port area in a bandpass.

iamamp3pimp
08-19-2009, 04:13 PM
oh god no......that sonly 25 square inches of port area.

you need about 5 times that.

Scotty2Naughty
08-19-2009, 05:57 PM
So would 2 6"s be at least sufficient? it would be about 55 square inches

iamamp3pimp
08-19-2009, 06:06 PM
no.

dappa5
08-19-2009, 07:35 PM
that's ony double lol

80INCHES
08-20-2009, 07:00 AM
U Need Atleast 2 8inch Round Ports (100.1 Square Inches)

80