Full range planar speaker using neo magnets - Page 19 - 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 29th August 2012, 07:43 AM   #181
diyAudio Member
 
Join Date: Jan 2007
Location: wigston leics england
Default MORE NEO REBUILDS.

Have decided against building anymore EPSILON style layouts and I am using 3mm tape now. Easier and just as sensitive, you live and learn, it's also a lot easier and quicker. My back is happier as well. I still have alot more rebuilds to do with the new tape.All the blue ones 9 of them. I will finish my headphones one day. I have finalized the 2 designs at last. I will have to swap ears to find the best layout as I have 2. The A4 size design is only half finished 1 more to build.When I get my carport I will be putting 2 on the wall outside to try. Big ones 4' x 2' with acoustic insulation at the rear.Any suggestions would be appreciated.
Attached Images
File Type: jpg SAM_0154.JPG (427.4 KB, 330 views)
File Type: jpg SAM_0155.JPG (409.1 KB, 307 views)
File Type: jpg SAM_0157.JPG (729.6 KB, 301 views)
File Type: jpg SAM_0162.JPG (680.5 KB, 285 views)
File Type: jpg SAM_0167.JPG (814.8 KB, 264 views)
File Type: jpg SAM_0170.JPG (731.1 KB, 64 views)
File Type: jpg SAM_0213.JPG (398.3 KB, 51 views)
File Type: jpg SAM_0301.JPG (381.5 KB, 62 views)
File Type: jpg SAM_0305.JPG (395.3 KB, 64 views)
File Type: jpg SAM_0306.JPG (627.8 KB, 64 views)
__________________
HENRY
  Reply With Quote
Old 29th August 2012, 09:28 AM   #182
diyAudio Member
 
Join Date: Aug 2004
Location: Huskvarna
Quote:
Originally Posted by JAMESBOS View Post
Have decided against building anymore EPSILON style layouts and I am using 3mm tape now. Easier and just as sensitive, you live and learn, it's also a lot easier and quicker.
Where have found 3 mm wide aluminium tape? What is the thickness of the aluminium?

Roger
  Reply With Quote
Old 29th August 2012, 10:11 AM   #183
diyAudio Member
 
Join Date: Apr 2010
I have always wondered about these planar type speakers but never really understood how they work. What determines the low frequency cutoff?

Is it just the size?

I have always wanted to make a large one for subwoofer duties after seeing one of the ribbon manufacturers make a subwoofer that could play from 4-16hz I believe. Was amazing but they would not tell me anything about their technology.

But I always seem to see you making new speakers JAMESBOS so I wonder if you might know?
  Reply With Quote
Old 29th August 2012, 10:30 AM   #184
diyAudio Member
 
Join Date: Jan 2007
Location: wigston leics england
themaskingshop.co.uk is the place to go for 3mm tape,The thickness is 6/100 of a millimeter.
__________________
HENRY
  Reply With Quote
Old 29th August 2012, 10:31 AM   #185
diyAudio Member
 
Join Date: Aug 2004
Location: Huskvarna
It is kind of complicated... The low frequency cut-off is determed by several factors. The tension of the diaphragm, the mass of the diaphragm, the size of the diaphragm, the size of the baffle etc. That subwoofer you mention, do you mean the french Infra Planar? It is far from what you see hear in this thread.
  Reply With Quote
Old 29th August 2012, 10:37 AM   #186
diyAudio Member
 
Join Date: Aug 2004
Location: Huskvarna
Quote:
Originally Posted by JAMESBOS View Post
themaskingshop.co.uk is the place to go for 3mm tape,The thickness is 6/100 of a millimeter.
Thank you. It seem to be 40 m Aluminium Foil, not 60m. It can be checked with a suitable multimeter. Just measure the resistance for several meters. Should be about 0.22 ohm/m for 3 mm wide tape.

Last edited by RogerGustavsson; 29th August 2012 at 10:40 AM.
  Reply With Quote
Old 29th August 2012, 10:46 AM   #187
diyAudio Member
 
Join Date: Jan 2007
Location: wigston leics england
I did use a multimeter and it is 60um. It is glued and masked very easy to use.Especially to turn, you don't need it any thinner, else it will rip when using. Have done that a few times using the CPC 9mm tape and the 4.5mm tape when I cut it in half. Easy with scissors. Glad I don't have to cut anymore hundreds of meters. Not really designed any sub woofers, as the 4' x 2' using ferrites goes down low anyway no need for a sub woofer to my ears. The bass is very tight and non resonant compared to the QUAD ESL's. I have these as well. Much prefer my own designs in comparison. A lot easier to build and repair as well.Only 1.66 for 60 meters very cheap.Flemings left hand rule explains how they work.
__________________
HENRY

Last edited by JAMESBOS; 29th August 2012 at 11:02 AM.
  Reply With Quote
Old 29th August 2012, 11:13 AM   #188
diyAudio Member
 
Join Date: Aug 2004
Location: Huskvarna
I believe you but it is with the glue, if you did not remove it first. I am planning to rebuild Magnepan speakers and then 3x0.06 mm is not really suitable.
  Reply With Quote
Old 29th August 2012, 11:20 AM   #189
diyAudio Member
 
Join Date: Apr 2010
Transmission Audio Inc.
A little past half way on the page they have a prototype subwoofer.
  Reply With Quote
Old 29th August 2012, 12:54 PM   #190
diyAudio Member
 
Join Date: Aug 2004
Location: Huskvarna
"No release date as of now." Three years ago.

Transmission Audio are still only using dynamic drivers in the bass. Price is rather elevated for the larger systems....
  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
my 14 inch full range speaker! chinese Full Range 235 21st September 2010 01:30 PM
Where to find magnets???For Diy Planar floydturbo Planars & Exotics 8 27th July 2010 10:28 PM
16 Ohm Full-Range Speaker thelordash Chip Amps 13 23rd January 2009 05:13 PM
full range speaker for HT Jazzz Full Range 13 8th September 2006 08:27 PM
beginner full range speaker tacomaboy Full Range 5 12th January 2004 07:38 PM


New To Site? Need Help?

All times are GMT. The time now is 03:28 AM.


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