4 12's box design

bulldogfreddy · 28th December 2007, 11:07 PM

Thinking about changing my box to a bandpass but not what is best design for 4 pioneer 12s with 2 brutus 2006, 1 5 farad cap, upgrade the big 3 with bigger alt, and 1 extra battery in back just asking if anyone know the best box design for 4 12s. The pioneers are the tw-s3004spl. I am right now thinking about a bandpass box for a 2004 chevy avalanche but should I go with a 6th order or 8th order. Or let me know if you have a better design because they are now in a ported box tuned at 37hz.

bulldogfreddy · 29th December 2007, 02:07 AM

please help

tsmith1315 · 29th December 2007, 05:33 AM

What do you not like about the ported box?

Tim

aznboi3644 · 29th December 2007, 05:56 AM

Bandpass boxes are very tricky to design and make sound good.

If you really want a bandpass box I'd go to www.hexibase.com and talk to pete...top notch acoustic engineer

bulldogfreddy · 29th December 2007, 02:45 PM

Ported box sound good but you hear the dist. plus I want a little more boom. It might be because the way I buld the box also.

tsmith1315 · 29th December 2007, 03:05 PM

Quote:

The pioneers are the tw-s3004spl

Do you have any specs on these woofers? Without them anything you do is guesswork.

#1-Bandpass boxes are big. The best alignment (which "order" you use) will depend on the speaker's specs, how much room you have to spare, and what your performance requirements are.

You should be able to make 4-12's deliver whatever you want with a standard sealed or ported box, and avoid the hassle of bandpass.

Unless of course, you just want to experiment. That's what this group is about!

Tim

aznboi3644 · 30th December 2007, 02:23 AM

Quote:

Originally posted by bulldogfreddy
Ported box sound good but you hear the dist. plus I want a little more boom. It might be because the way I buld the box also.

what "dist" do you hear???

Clipped · 30th December 2007, 02:24 AM

whats your current box design? i have a feeling your box isnt designed properly...and isnt really tuned to 37hz...

bulldogfreddy · 30th December 2007, 03:35 AM

box:
49 3/4 in width
19 in lentgh
19 in height

port:
6 3/4 in length
6 1/2 in width
1 1/4 in heigth

The noise I think might be coming from the ports.
Each sub is seperate to make they own box. The size of the is the outside sizes.

bulldogfreddy · 30th December 2007, 03:49 AM

pioneer

29th December 2007, 02:07 AM	#2
bulldogfreddy diyAudio Member Join Date: Dec 2007	need help please help

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28th December 2007, 11:07 PM	#1
bulldogfreddy diyAudio Member Join Date: Dec 2007	4 12's box design Thinking about changing my box to a bandpass but not what is best design for 4 pioneer 12s with 2 brutus 2006, 1 5 farad cap, upgrade the big 3 with bigger alt, and 1 extra battery in back just asking if anyone know the best box design for 4 12s. The pioneers are the tw-s3004spl. I am right now thinking about a bandpass box for a 2004 chevy avalanche but should I go with a 6th order or 8th order. Or let me know if you have a better design because they are now in a ported box tuned at 37hz.

29th December 2007, 05:33 AM	#3
tsmith1315 diyAudio Member Join Date: Jul 2003 Location: Doerun, GA	What do you not like about the ported box? Tim

29th December 2007, 05:56 AM	#4
aznboi3644 diyAudio Member Join Date: Dec 2007	Bandpass boxes are very tricky to design and make sound good. If you really want a bandpass box I'd go to www.hexibase.com and talk to pete...top notch acoustic engineer

29th December 2007, 02:45 PM	#5
bulldogfreddy diyAudio Member Join Date: Dec 2007	Ported box sound good but you hear the dist. plus I want a little more boom. It might be because the way I buld the box also.

30th December 2007, 02:24 AM	#8
Clipped diyAudio Member Join Date: Mar 2005 Location: home	whats your current box design? i have a feeling your box isnt designed properly...and isnt really tuned to 37hz...

30th December 2007, 03:35 AM	#9
bulldogfreddy diyAudio Member Join Date: Dec 2007	box: 49 3/4 in width 19 in lentgh 19 in height port: 6 3/4 in length 6 1/2 in width 1 1/4 in heigth The noise I think might be coming from the ports. Each sub is seperate to make they own box. The size of the is the outside sizes.