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tymoto21
04-17-2009, 11:42 AM
http://i293.photobucket.com/albums/mm75/poopy521/apxxbox.jpg

box is 16cf internal after displacements, port has 252sq in, tuned to 37hz, front is 3" thick, port is 1.5" thick rest of box is .75" think, any input?

mlstrass
04-17-2009, 12:08 PM
Looks good. Plan on adding some external 2x4 bracing to a box that size. Looking forward to hearing this when it's done...

This for 1 sub or 2?

tymoto21
04-17-2009, 12:15 PM
1 18
ive been talking to a guy on termpro who has been using apxx's for a long time and this is what he said works best for the 18 in a wall, i hope its tuned low enough for my liking, should hit hella high though being so big efficiency should be way up. :thumbsup:
yeah i will do alot of bracing.

DDbump
04-17-2009, 12:26 PM
1 18
ive been talking to a guy on termpro who has been using apxx's for a long time and this is what he said works best for the 18 in a wall, i hope its tuned low enough for my liking, should hit hella high though being so big efficiency should be way up. :thumbsup:
yeah i will do alot of bracing.

good luck going lower without ur door falling off

audioatg
04-17-2009, 12:28 PM
Is that guy on termpro named Mr Stany. Somthin like that. Id look him up if its not on termpro. He knows his APX subs.


Id say make that box a bit thicker. I have mine. My face plate is five layers thick. And everything else is 1.5 thick. Back is at least 2 inches thick. Do allthread for bracing.

Note Same guy helped me with the design of my box.

tymoto21
04-17-2009, 02:38 PM
stany yes thats him. he told me 4" front baffle but i think i can get by with only 3, he said he used the 4" front for his burp frequency but i think i will make one port for db drag/bass race tuned to like 55 and then make this one for daily.
and jake look whos talking about doors falling off, 4 12 off like 7krms tuned to 33hz... :hairtrick:

audioatg
04-17-2009, 06:29 PM
Well only thing is when you start going up in power that sub is going to wang as they say. I would make the box as thick as possible now. Rather then redoing it later trying to add thickness.

DonH
04-17-2009, 06:32 PM
nice and huge port! also i would add bracing to the walls that are going to be only 3/4". also resin on the inside and fiberglass the corners man!

iamamp3pimp
04-17-2009, 07:03 PM
at least 1.5" thick

tymoto21
04-18-2009, 12:41 PM
^ well it looks like everyone is telling me to go 2 layers thick all the way around.... soooo i will have to do a little redesigning and get the walls a little thicker.

audioatg
04-18-2009, 02:47 PM
^ well it looks like everyone is telling me to go 2 layers thick all the way around.... soooo i will have to do a little redesigning and get the walls a little thicker.

You will be very happy in the long run. Over time with a thin walled box. its going to come apart. When I get time I will send you a pic of my box for the apx I have.

tymoto21
04-20-2009, 02:04 AM
very cool. how much power do you have on it? yeah im going to redesign it soon so i can still get the 16cf out of it and have 1.5" all around.