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Crown_amps
10-17-2005, 08:38 PM
hey guys care to check my math ? will this do for my 12 '' alpine type e :crazy:

so



1.7 cubic feet

Tuned to 32 hz

Port width 1.75 ''

port length 30''

external dimensions 18'' wide 14'' tall and 21 '' deep

Crown_amps
10-17-2005, 09:15 PM
come on....i need some feed back here

IA2
10-18-2005, 04:18 AM
havent checked it on a box building program, but just glancing at it and looking at the numbers, they seem pretty close

bimma85
10-18-2005, 04:23 AM
according to this http://www.accelerator-pedal.com/ported-box.asp#
18*14*20.25 with a 1.75" port that is 30" long would give you 1.7 @32

Crown_amps
10-18-2005, 06:45 PM
awesome that program is way really a huge help thanks man.

Crown_amps
11-15-2005, 03:35 PM
havent checked it on a box building program, but just glancing at it and looking at the numbers, they seem pretty close

The Jl audio website says 2.5 cubic feet for a single W0 ported box so with a TYPE E :eek: that has more power etc does 1.7 cubic feet see like the right size?

looking for 1.5 to 2.2 cubic feet range any input guys?

i got my mdf and sub & saw all sharp so i figure plans are in order:up2somet:

Crown_amps
11-15-2005, 03:44 PM
anyone?