Go Back   Home > Forums > >

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

no moving coil no fixed magnet and no cone
no moving coil no fixed magnet and no cone
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
Old 23rd October 2016, 10:26 AM   #1
simeon w is offline simeon w
diyAudio Member
 
Join Date: Apr 2012
Wink no moving coil no fixed magnet and no cone

hi all

attached is a new type of speaker design

walk around so can hang or go on a stand

stereo
and no moving coil no magnet and no cone



can be further split for quadro etc
and very high powered
needs a tweak or two to the design
but the basics is there

the iron rings are bonded to the hemespherical wood sound emitter
Attached Images
File Type: jpg basic stereo from an old style amp to drive it SST.jpg (109.1 KB, 483 views)
  Reply With Quote
Old 23rd October 2016, 11:20 AM   #2
bentoronto is offline bentoronto  Canada
diyAudio Member
 
Join Date: Jan 2008
Location: Toronto and Delray Beach, FL
no moving coil no fixed magnet and no cone
Always good to see new concepts. The Rice-Kellogg cone driver is as close to over-bloated obsolescence as the internal combustion engine in cars.

Is it a Magnepan with mag-lev suspension?*

Looks like there is a soft "surround" to support the diaphragm when the suspension power is off and to address front-to-back out of phase cancellation.

Ben
*I worked on mag-lev trains in the early 70's.
__________________
HiFi aspirations since 1957. "When the toilet paper of Experience is depleted, the backside of Reason goes unwiped"
  Reply With Quote
Old 23rd October 2016, 11:39 AM   #3
ashok is offline ashok
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
no moving coil no fixed magnet and no cone
By function a cone is a large area that moves air in a speaker. This one has a hemispheric radiator and so is an equivalent 'cone'. There are several coils. One shown behind the apex of the hemisphere appears to drive it and isn't that a 'moving coil' ? So the description appears to be misleading ?

A speaker that really fits most of the description would be a plasma speaker ( usually tweeter!).
__________________
AM
  Reply With Quote
Old 23rd October 2016, 04:43 PM   #4
WrineX is offline WrineX  Netherlands
diyAudio Member
 
WrineX's Avatar
 
Join Date: Mar 2004
Location: Den Haag
wow thats the first time i really have no clue how it works and what i am looking at haha
  Reply With Quote
Old 23rd October 2016, 06:44 PM   #5
simeon w is offline simeon w
diyAudio Member
 
Join Date: Apr 2012
hi

there is no moving coils

the reflex dampen system isnt adjusted other than at power on
the DC levitation can be modulated
the hemespheres can be textured and the higher frequencies split off to drive the hemespere centers drive coil set

the drive coils are mounted on disks
the center of the hemesperes is a dual coil
right and left

there is no cone infact the exact opposite
the drive system can be set up to accept line input
and just one fet per coil on each ring

the fixed point is enough to hold the hemespheres fully
and the speaker will perform quite well
but with active setup
then it will sound much louder and clearer im sure

as i say it will need tweaks and design thinking

but i cant see anything like this anywhere anything similar
and the SST split sphere tech has other uses
forinstance it can be used as a very sensitive directional mic
or as a transducer if made smaller or perhaps made of quartz

self contained for cleaning pipes
  Reply With Quote
Old 23rd October 2016, 06:51 PM   #6
TNT is offline TNT  Sweden
diyAudio Member
 
Join Date: Apr 2003
Location: Sweden
no moving coil no fixed magnet and no cone
Fun thing. Did you do a prototype yet?

//
  Reply With Quote
Old 23rd October 2016, 07:19 PM   #7
simeon w is offline simeon w
diyAudio Member
 
Join Date: Apr 2012
no just at the drawing stage and iron out problems before having to make another one
saves a bit of time

ive done some spacial simulations seems to give a good projection of sound
the texture of rings i think

the problem i have is model software is rubbish at this kind of thing
speaker design software all runs around cones and woden boxes
if anyone has an idea of a good simulation tool
as for the electronics this part is easy and very easy to build
the iron ring can be replaced with iron slugs per coil step coupling core
so this will reduce the weight and aid in resosnace..
i see this place and im thinking this is a good place to fire it at..

Last edited by simeon w; 23rd October 2016 at 07:29 PM.
  Reply With Quote
Old 23rd October 2016, 09:11 PM   #8
Sonce is offline Sonce  Macedonia
diyAudio Member
 
Join Date: Jan 2014
Location: Macedonia
simeon w, I still can't understand how it works (and I have impression that I am not the only one). Maybe some better picture will help?
  Reply With Quote
Old 24th October 2016, 02:33 AM   #9
ashok is offline ashok
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
no moving coil no fixed magnet and no cone
I don't understand how sound is produced without any moving part. Sound requires air as a medium , for the ear to hear. Something needs to move that. If there is vibration of the hemisphere then that is the moving medium, an equivalent cone ! In a plasma speaker even that does not exist but it works in a different way altogether.
If the coils do not move what do they do ? Generate a magnetic field which does what ?
Can't figure out how this works !
__________________
AM
  Reply With Quote
Old 24th October 2016, 07:52 PM   #10
WrineX is offline WrineX  Netherlands
diyAudio Member
 
WrineX's Avatar
 
Join Date: Mar 2004
Location: Den Haag
me neither i love new ideas but i cant wrap my head around it this time haha
  Reply With Quote

Reply


no moving coil no fixed magnet and no coneHide this!Advertise here!
Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Magnet mounting dipole drivers w/high moving mass matevana Subwoofers 12 10th July 2010 12:44 PM
What currently available moving magnet cartridge is the best.??????.... oldheathkitphil Analogue Source 28 12th April 2008 01:16 PM
Moving Magnet Phono Load 6f6 Analogue Source 6 16th February 2007 09:25 PM
moving coil loading lt cdr data Analogue Source 28 27th June 2005 09:50 PM
any moving magnet drivers? jcx Multi-Way 0 8th December 2004 02:23 AM


New To Site? Need Help?

All times are GMT. The time now is 10:33 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki