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View Full Version : 4th Order Bandpass for 3 12in Type-R's by 80inches



Excalibur0428
10-25-2006, 03:29 PM
Just got my designs for a 4th Order Bandpass last night for three 12in Type-R's.

The rear chamber is 4.3cubes before sub displacement. Not sure what the displacement is on the subs. The port is tuned to 56hz:)

I was kinda scared when I first got the plans because I thought the rear chamber would be to small for 3 type-R's at 4.3cubes, but 80inches says that this box will get pretty **** loud and hit the low notes pretty good so I'm pretty excited to start building it this weekend and to get some flex vids:D

Box will go in a '95 Explorer

but here is the box.

Flipx99
10-25-2006, 03:35 PM
Sounds like it's going to be a huge box.

4th order is where its at....until you want to try a 6th order, but I don't think I have the room.

80INCHES
10-25-2006, 05:34 PM
hmm 114square inch port + 4thorder bandpass + 3k watts(give or take)= serious serious wanging:up2somet:

80

heyman421
10-25-2006, 05:38 PM
should be very nice.

Beat_Dominator
10-25-2006, 05:39 PM
Pfft.

iamamp3pimp
10-25-2006, 05:48 PM
i wish i had the room.

woody89
10-25-2006, 11:23 PM
I sorta want to try a bandpass box, but I don't know if it will be worth it/ if I have the room.

bdawson72
10-27-2006, 03:04 AM
whats the difference between 4th and 6th....im going to do a 4th order with 3 mag 12's

Mitch86
10-27-2006, 03:09 AM
80's been busy with those bandpass designs.... I'm looking forward to throwing my L7 in one if I dont change subs completly. :up2somet:

iamamp3pimp
10-27-2006, 03:40 AM
Mitch, try it out.


I design a ton, and I was really impressed with a 4th order (80's) on an L7 with about 500 watts.........



its fairly small too.

Excalibur0428
10-27-2006, 09:46 PM
box build progress with pics tommorow morning :)

406er
10-28-2006, 01:55 AM
dbl post

406er
10-28-2006, 01:56 AM
whats the difference between 4th and 6th....im going to do a 4th order with 3 mag 12's

4th has only the front wave of the sub ported
6th has both the front and rear chambers ported

NOW i have a question about a sorta 4th order box

along timeago, my GF got some old RF subs in a 4th order box BUT the front of the sub shared a comon sealed chamber and the rear of the subs had there own ported chambers. whats up with that

80INCHES
10-28-2006, 02:04 AM
4th has only the front wave of the sub ported
6th has both the front and rear chambers ported

NOW i have a question about a sorta 4th order box

along timeago, my GF got some old RF subs in a 4th order box BUT the front of the sub shared a comon sealed chamber and the rear of the subs had there own ported chambers. whats up with that

thats a inverted 4th order:up2somet:

80

Mitch86
10-28-2006, 02:05 AM
Alright mp3pimp, I'll try it..I guess a it'll either be good, or just a waste of 25-30 bucks. Nothin to cry over. I'm not impressed at all with the current box. (which is too small and tuned @ 32hz.) I have about 900 watts or so to throw at it also.

Looks like a bandpass bandwagon has formed lately...

Count me in. :up2somet:

mattmcss
10-28-2006, 02:06 AM
80, how much do you charge for these plans ? Pm me a price if you could, just a general idea.

80INCHES
10-28-2006, 02:09 AM
pm answered

80