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View Full Version : how much volume ported?



perfecxionX
04-17-2008, 11:30 PM
i have a cheap 15" powerbass sub thats currently in a sealed box. output *****, so im going to build a ported enclosure. sub is rated at 300, and my powerbass amp is rated at 400w. ill probably tune it to 32-34. what i need help with is how much volume i should give it.

im thinking 3 - 3.5 cubes. what would u do?

ts parameters
http://img443.imageshack.us/img443/1749/tsra9.jpg

perfecxionX
04-18-2008, 01:15 AM
anyone have an opinion?

perfecxionX
04-18-2008, 12:44 PM
i guess ill go with 3

ThatChevyGuy
04-18-2008, 12:46 PM
Those subs come with a booklet on enclosure rec's.
According the to the booklet 3.5 at 30 hz is optimal.

ArrizX
04-18-2008, 12:48 PM
http://www.lalena.com/Audio/Calculator/Box/

that site says...

Dimensions

--------------------------------------------------------------------------------
Vb = 493.37 lts

= L x W x H
f3 = 15.9 Hz
fb = 33 Hz
Dv = 15.24 cm
Lv = -10.79 cm


http://www.lalena.com/Audio/Calculator/Box/portedBox.gif

perfecxionX
04-18-2008, 07:55 PM
Those subs come with a booklet on enclosure rec's.
According the to the booklet 3.5 at 30 hz is optimal.

actually i have to the pamphelt and dont trust the manufacturer specs bc their so small:


http://img444.imageshack.us/img444/9643/41257868js5.jpg

that 2.5 is including the port and sub displacement...

perfecxionX
04-18-2008, 07:58 PM
http://www.lalena.com/Audio/Calculator/Box/

that site says...

Dimensions

--------------------------------------------------------------------------------
Vb = 493.37 lts

= L x W x H
f3 = 15.9 Hz
fb = 33 Hz
Dv = 15.24 cm
Lv = -10.79 cm


http://www.lalena.com/Audio/Calculator/Box/portedBox.gif




493 liters? 17ft^3?