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Amp selection help for speakers
Amp selection help for speakers
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Old 19th June 2001, 07:42 AM   #1
Roger is offline Roger
diyAudio Member
Join Date: Jun 2001
Location: Phoenix Arizona
Well I am building a pair of Electrostatic
loudspeakers. I have built a couple different sized panels.
Currently I am playing with a panel that is 6in. x 6ft. tall. I did purchase a step up transformer and a audio matching bias transformer from InnerSound. When I plug the speakers into my integrated amp I must turn the volume most of the way up just to get a listenable volume out of them.

Now I am thinking that the reason for this is due to the fact that the amp is not putting out enough Voltage?

So I am asking for any suggestions on a DYI amp that will push a pair of Electrostatic speakers.

Thank you for the input, Roger Postema
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Old 19th June 2001, 11:53 AM   #2
jam is offline jam  United States
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Join Date: May 2001
Location: Auburn, CA, USA
Default Electrostatic Speakers


Unfortunately electrostatic speakers can be very inefficient
and can require lots of voltage swing, but the rewards are great if you can get them working correctly.
A good site for some great high power designs is


Better output can be had by increasing your bias voltage and using an audio transformer with a higher turns raito but you have to be careful that you do not arc the panels.
If you are bi-amping you could reduce the diaphram to stator distance and this will increase your panel output as they now do not have to handle low frequencies.


[Edited by jam on 06-19-2001 at 07:03 AM]
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