how about these for stators? - 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 17th June 2005, 06:03 AM   #1
diyAudio Member
 
Join Date: Jan 2002
Location: Puget Sound
Default how about these for stators?

Perforated Metal Grill Pair
  Reply With Quote
Old 17th June 2005, 12:41 PM   #2
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
1/4" holes are a bit big, but if the % open area works out ok, there's no reason not to use them that I can see. The per square foot price seems OK compared to the perf metal sheets at McMaster-Carr; a 36"x40" sheet of 18 gauge perf steel with 0.125" holes runs about $45 at McMaster.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 17th June 2005, 01:34 PM   #3
diyAudio Member
 
Brian Beck's Avatar
 
Join Date: Dec 2004
Location: South Florida, USA
These will probably work OK to generate electrostatic fields and open enough to pass sound. My concern with any flat metal stator screen is mechanical rigidity. The sound-making diaphragm is pushed and pulled by the stators’ voltages. So the stators feel the same forces and can move too. If the stators are floppy and resonant, then these characteristics will be superimposed on the sound, since moving stators will change the forces on the diaphragm. This is why some people use curved stators (think ML), while others have used plastic egg crates as support (Quad, DIYers). A simple but inexact test is to tap the stator material with your knuckles or something like a screw driver handle (essentially stimulating it with an impulse) and listen to it and feel the response. Does it vibrate and buzz? Does it flop around easily? Does it produce an audible ringing pitch in response to the impulse? When mounted in a frame it will likely be better behaved, and should be checked that way too. Whatever you hear with this simple test will be superimposed on the music down the road. Carefully chosen resonances and damping of the stator (and frames) are extremely important to making ESLs with smooth response.
__________________
Brian
  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
quad 63 stators coating Williams Audio Planars & Exotics 11 17th September 2008 08:51 AM
ESL with welding Rod Stators angsuman Planars & Exotics 9 13th February 2007 11:52 AM
Stators MrPin Planars & Exotics 10 12th January 2006 03:06 AM


New To Site? Need Help?

All times are GMT. The time now is 06:28 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