Line Source Dipole Subwoofer - diyAudio
Go Back   Home > Forums > Loudspeakers > Planars & Exotics

Planars & Exotics ESL's, planars, and alternative technologies

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
Reply
 
Thread Tools Search this Thread
Old 8th July 2011, 02:54 PM   #1
dkxdn is offline dkxdn  Denmark
diyAudio Member
 
Join Date: Nov 2002
Location: Denmark
Default Line Source Dipole Subwoofer

Hi

For 2 month ago I received my beloved Magnepan 1.7 but from the start they needed some assistant in the lower part.

Then I designed a line source dipole subwoofer:
4 x Peerless SLS 400 – 830867 pr side. And I used the sidewalls for the outside baffle – see picture:

Click the image to open in full size.

To get the same finish as the Magnepan 1.7 I orderd two “Socks” directly from Magnepan – great service and in a week I receive them here in Denmark !

More pictures:
Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Last edited by dkxdn; 8th July 2011 at 02:58 PM.
  Reply With Quote
Old 8th July 2011, 05:17 PM   #2
diyAudio Member
 
CharlieM's Avatar
 
Join Date: Feb 2008
Location: Savannah, GA
I really like that woofer setup and it looks great too!
How are you liking it's sound?
  Reply With Quote
Old 8th July 2011, 05:33 PM   #3
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
I like this concept very much!
I too had been think about some thing similar, latey I have been playing with woofers firing into the corners of the room.
Please elaborate some more If you would!

jer
  Reply With Quote
Old 8th July 2011, 07:25 PM   #4
dkxdn is offline dkxdn  Denmark
diyAudio Member
 
Join Date: Nov 2002
Location: Denmark
Most importend to integreat a subwoofer to the Magnepan 1.7 is to have the same Sound direction: Linesource and Dipole - with out these two they Will never play together -thats my meaning !
Later this weekend I'll publish some messurement

Last edited by dkxdn; 8th July 2011 at 07:52 PM.
  Reply With Quote
Old 8th July 2011, 07:50 PM   #5
diyAudio Member
 
Join Date: Feb 2008
Location: Jackson,michigan
This is an idea that might work for me as my room is only 10.5 feet wide and 18.5 feet long.

I will be looking foward to your next report! jer
  Reply With Quote
Old 17th July 2011, 12:46 PM   #6
dkxdn is offline dkxdn  Denmark
diyAudio Member
 
Join Date: Nov 2002
Location: Denmark
And here comes the measurements of the subwoofer alone:
All measurements are made from my listen place with a window on 60msec and smoothing = 1/N=5

Click the image to open in full size.
A: Blue Left, B: Red Right without crossover & eq

Click the image to open in full size.
A: Blue Left without crossover+eq, B: Red with crossover: 75 hz-48db/octave + par eq at 20hz, 80hz & 165hz and hishelf from 90hz - yes many function on my Lyngdorf

Click the image to open in full size.
Difference on left and right

Last edited by dkxdn; 17th July 2011 at 12:52 PM.
  Reply With Quote
Old 18th July 2011, 12:22 AM   #7
a.wayne is offline a.wayne  United States
Sin Bin
 
Join Date: May 2008
Location: Front Row Center
Hello ,

Nice work , i love the look and being that close to the side walls will help the bass , but i cannot see it not affecting the sound of the 1.7's ....

why not seperate them ......
  Reply With Quote
Old 18th July 2011, 12:50 PM   #8
dkxdn is offline dkxdn  Denmark
diyAudio Member
 
Join Date: Nov 2002
Location: Denmark
Space neded ! If I had another room = Wider then ...
But I will try to put the Maggie with the tweeter outside and about 10cm from the subwoofer.
  Reply With Quote
Old 28th July 2011, 03:42 PM   #9
diyAudio Member
 
Join Date: Jul 2011
Sorry I may be missing something here but what is the point in this?

Considering that the bass coming from your subwoofers is omnidirectional (Definitly true for 80hz down but the effect starts at arround 150hz)

The only directional tone you will be able to hear from them is the harmonic distortion.
  Reply With Quote
Old 29th July 2011, 05:21 AM   #10
CLS is offline CLS  Taiwan
diyAudio Member
 
Join Date: Jun 2005
Location: Taiwan
It's dipole, not monople or omni.

Have you ever heard dipole bass?
  Reply With Quote

Reply


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
Tapered dipole line source array slomatt Full Range 0 9th February 2010 07:00 AM
Dipole subwoofer diy Subwoofers 1 5th June 2004 02:30 PM
Ultimate Line Source Dipole Speakers m.parigi Multi-Way 2 21st November 2003 06:54 PM


New To Site? Need Help?

All times are GMT. The time now is 11:03 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2