View Full Version : Ported Box Tuning

12-08-2002, 04:35 PM
Im building a ported box for my 2 10" Alpine Type-R's that is 32" W x 16" deep x 14" high with 3 3" x 13" ports....how would i be able to tell the tuning of this box....and is this box going to hit hard and low??

12-08-2002, 10:40 PM
Is there anyway i can lower the hz so t hat it will hit higher dB???make it louder??

12-08-2002, 10:41 PM
if my box now is 13" H x 13"D x 26" Wide how do i figure out how many cubic feet it is???

12-09-2002, 05:45 PM
my 32" Wx 16" D x 14"H with 3 3" x 13" ports makes a 1.3 cubic feet for the box doesnt it??? this is a good box size...i just dont want to spend money on a box that isnt gonna be right for my subs....this is right size..correct???

12-09-2002, 09:13 PM
****....i thought it was 1.3 cubic feet....is this size ported box ok for my subs....It is recommended for 1.2 cubic feet....does this sound like a good box??

12-09-2002, 11:07 PM
what is a sub sonic filter???

12-09-2002, 11:08 PM
and what if i put 4 3" ports in the box...what effect would this have???

12-09-2002, 11:14 PM
can you tell me more about this sub sonic filter....i dont think i have one...do I have to buy one??? how much do they cost??? im confused as hell when you mentioned that

12-09-2002, 11:25 PM
I have an eclipse amp and it says it has a 20hz subsonic filter slope and it also mentions somthing about 12 or 24 dB/octave... is that ok???

12-09-2002, 11:32 PM
alright...no bass tests for me....it mentions that the subsonic filter can switch from 12 dB or 24dB but i think it is fixed at 20 hz....is that ok for the box...i dont want to blow a sub

12-09-2002, 11:36 PM
it also says

ChannelFlex Crossover:
Low Pass Frequency Range
12dB/octave : 50 - 200 hz

Sub sonic Filter Slope 20Hz :12 or 24 dB/Octave

12-10-2002, 10:23 PM
-24 db octave......you mean just 24 db octave not negative...righ