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-   -   Amp selection help for speakers (http://www.diyaudio.com/forums/planars-exotics/380-amp-selection-help-speakers.html)

Roger 19th June 2001 07:42 AM

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

jam 19th June 2001 11:53 AM

Electrostatic Speakers
 
Roger

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

http://www.aussieamplifiers.com

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.

Jam




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


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