Harry Baggen
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DIY Electrostatic Loudspeakers

High tension for sound reproduction

Building your own loudspeaker boxes using traditional drive units was once a popular pastime but now seems to have lost much of its appeal. Those of you interested in a different approach to sound reproduction may want to have a go at building electrostatic loudspeakers. Amazing results can be obtained from basic materials that cost next to nothing. We trawled the net and found loads of information on these oddball boxes.The operating principle of the electrostatic loudspeaker (or ESL) is based on the phenomenon of two electrical current conducting plates with opposite polarities developing a mutual attracting force, and two plates with the same polarity, a mutual repelling force. Most electrostatic loudspeaker units employ two air permeable panels (stators) separated by a taut conductive membrane.
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