re TB Subwoofer design, phase concerns - 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 18th June 2013, 03:45 AM   #1
Thims is offline Thims  Australia
diyAudio Member
Join Date: Sep 2006
Default re TB Subwoofer design, phase concerns

I have a room with a raised floor in which I wish to use 3 sub woofer enclosures using the TB W5-11338. I have only a height of 155mm to play with.
Each sub would have 4 x TB W5-1138 in a ported design.
Because of width restrictions on the front area, I cannot place all of the drivers in a straight line but can place them in a u shape with a port at the rear.
My concern is keeping all of the drivers in phase and with the port at the rear.
Each enclosure is approximately 48L with a tune of 37hz.

I normally use Leap but since upgrading to Windows 7, it doesn't work on it and I have not been able to test the design before I build it.
Can anyone see issues that I cannot see or if this design will work properly?

Or a better solution using different drivers? I could fit 3 LAT500 in there but I don't think they would have the same output as 12 TB's.

Attached Images
File Type: jpg W5-1138.jpg (136.2 KB, 140 views)
  Reply With Quote
Old 20th June 2013, 05:21 PM   #2
kessito is offline kessito  Netherlands
diyAudio Member
Join Date: Sep 2010
Location: Amsterdam
try vmware player. it's free and woks great if you need to run old applications

  Reply With Quote
Old 20th June 2013, 08:19 PM   #3
tb46 is offline tb46  United States
diyAudio Member
Join Date: Jan 2006
Location: Texas
Hi Thims,

As long as you stay below ~100Hz you should be fine with that arrangement. It looks to me that your needs would be perfect for djk's PPSL:
A Thread for those interested in PPSL enclosures
I'll attach an example, the standard PPSL is on the left, the opening can be reduced to 1/2 Sd (or even a little less).

Attached Files
File Type: pdf PPSL_Quad.pdf (10.7 KB, 15 views)
  Reply With Quote
Old 20th June 2013, 09:22 PM   #4
tb46 is offline tb46  United States
diyAudio Member
Join Date: Jan 2006
Location: Texas
Hi again,

Have you noticed that this driver is not a 5-1/4" driver, but more like a 6-1/8" (frame O.D.) driver? Manufacturer's spec is 155.8+-0.5 mm.
What is the space you have available, e.g.: the front area, and the area looking down on the sub?
What are your output requirements/application?

  Reply With Quote
Old 23rd June 2013, 10:58 PM   #5
diyAudio Member
Join Date: Jan 2008
Location: Toronto and Delray Beach, FL
Can't say as I understand the question here, but why do you want to have similar/uniform subs when heterogeneity works a lot better in real rooms (even if wannabee-engineers recoil at the thought)?

HiFi aspirations since 1957. Currently working on motional feedback again... the final frontier in audio
  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
phase splitter concerns ? coresta Tubes / Valves 13 1st May 2008 08:05 AM
anyone tried removing TB phase plugs? neutron7 Multi-Way 0 21st October 2007 06:06 PM
anyone removed phase plug from TB W3 871S neutron7 Full Range 1 16th January 2007 09:52 PM
john's tb - power handling concerns dvdwmth Multi-Way 8 1st September 2004 04:16 PM

New To Site? Need Help?

All times are GMT. The time now is 07:47 PM.

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