What is an ESL ?
An ESL is an ElectroStatic Loudspeaker. It consists of a thin sheet of material between two charged grids. When fed a sufficient high voltage, the sheet will push and pull between the grids because of the electrostatic forces. Think of it as a large capacitor. The ESL has a need for a high voltage DC powersupply to charge the grids. The high voltage to drive the sheet is typically generated by a step-up transformer. This results in a highly reactive load to the amplifier. Special amplifiers have been designed with 1 to 1.5 kVolt outputs to drive ESL’s directly.
Related Questions
- How long will the Generalist EC-4 TExES, Bilingual Generalist EC-4 TExES and ESL Generalist EC-4 TExES tests be valid for seeking certification?
- What is the difference between ESL/Generalist EC-6 TExES test and Generalist EC-6 with ESL Supplemental TExES tests?
- it didn explain what the ESL supplement certification does?
