What would your call this box? Good Idea? - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 15th June 2005, 07:37 PM   #1
diyAudio Member
electricashman's Avatar
Join Date: Aug 2002
Location: Tucson, AZ, USA...
Default What would your call this box? Good Idea?

Ive been lurking around.

Id like to make a band pass box for a 12in sub put in a Suburban "car". I read up on the Dual-chamber ported system and really like the idea, but I really would like the sub hidden inside the box, mostly for protection.

What would you call a dual chamber ported system applied to a band pass?

Wouldent this have flatter responce then a typical "single tone" bandpass?

Port placement on a dual chambe system:
The center port should it be centered, or does it not matter.
Id like to have the two ports side by side, they will each need to have a bend for length space constraints so one will bend and go into the smaller chamber.

For building the band pass I have built them with the smaller chamber 1/3 the volume. I calculated the total volume the same as a normal vented box. So this dual chamber ported bandpass box should be slightly large to account for the volume of the three ports. The ports will need to have bends to physically fit in the box.

VAS:3.67Cuft, 103.9 (liter)
400 Watts RMS
X-max:11.2 mm

So about a 3 cuft box with 3inX14.5in ports
Attached Images
File Type: jpg bandpass_double_tune.jpg (7.9 KB, 199 views)
  Reply With Quote
Old 17th June 2005, 02:19 AM   #2
mike.e is offline mike.e  New Zealand
diyAudio Member
mike.e's Avatar
Join Date: Sep 2004
Location: NZ
Send a message via ICQ to mike.e Send a message via MSN to mike.e
Ports in series
Ports are resonant. Energy is stored,and released after a time.

I wouldnt expect that system to be any better sounding than ap orted box or even a bandpass enclosure.

The reason is,any increase in output or extension must have some negative.

It looks like the dual chamber on that site.

Ports are all the same size from memory.

Get winisd pro from linearteam.dk and look at sealed/ported/bp4/bp6 and see whats best for your woofer.It looks like an 'inbetween' woofer which can take either.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is this a good idea? Nolantor19 Multi-Way 3 12th August 2009 12:36 AM
Is this a good idea? AC439 Multi-Way 0 30th December 2008 07:48 PM
Seems a good Diy idea !! sivan_and Everything Else 1 12th November 2006 07:44 AM
is this a good idea??? dmh Solid State 16 24th February 2005 03:47 AM
For a good time call Thatch_Ear Multi-Way 2 21st August 2002 07:03 AM

New To Site? Need Help?

All times are GMT. The time now is 05:56 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2