Newbie's ported box

[Crown_amps]

hey guys care to check my math ? will this do for my 12 '' alpine type e //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

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

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[Crown_amps]

come on....i need some feed back here

 

[IA2 10+ year member]

havent checked it on a box building program, but just glancing at it and looking at the numbers, they seem pretty close

 

[bimma85 5,000+ posts]

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]

awesome that program is way really a huge help thanks man.

 

[Crown_amps]

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 //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif 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]

anyone?