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An encyclopedic exploration of the important issues, tradeoffs, and technical questions involved in building these fascinating speakers. Offers construction advice for both flat and curved panels. Includes a curved cell design by Barry McClune. THE ELECTROSTATIC LOUDSPEAKER has intrigued music lovers since their first commercial introduction just after World War II. Hearing music via such a device often turns ordinary music listeners into dedicated, passionate partisans of this transducer format as the only true path to accurate sound reproduction. Add to this the additional incentive that such speakers can be constructed out of readily available materials, and the convert turns into a devotee ready to invest quantities of time and energy into the nearest equivalent of the perfect loudspeaker. The ability to move a panel of graphite-impregnated plastic immersed in a high-voltage field with an audio signal has fascinated audiophiles since the earliest days of high quality sound reproduction after World War II. This enthusiasm leads inevitably into explorations of the legendary output transformer-less amplifier (OTL) genre since such devices match their high impedance outputs ideally to the elec-trostatic’s input. Then there is the electrostatic headphone sideshow which beckons tantalizingly. No one writing about the electrostatic has contributed more to the success of amateur electrostatic speaker builders than Roger R. Sanders. His first article on the topic appeared in The Audio Amateur in 1975 (pp. 18–28). His designs were inspired to some extent, and informed by, the pioneering work of David Hermeyer, who published a series of Audio Amateur articles on building electrostatics, along with power amplifiers designed to drive them. Electrostatic speaker builders have strong opinions about ideal formats, stator structure, polarizing voltages, and many other details. In this book the author surveys all the alternatives and keeps clear about his own preferences, many of

The Electrostatic Loudspeaker Design Cookbook

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I started this project about two weeks ago it's a three-way ten inch woofer with a 5 inch mid-range and a 1 inch tweeter I chose an MDF material one and one eighth inch thick with rabbited joints the crossover is located in the chamber with the bass woofer these are the wires I cut out the tweeter the mid-range and woofer are they router I chose not to use bracing with the thought that the dimension of the walls don't really require me to use any bracing the Wolfer is a 10 inch woofer made by audio concept lacrosse Wisconsin the mid-range is also a Audio concepts driver 5 inch mid-range the tweeter is a one inch aluminum dome from Viva speakers this is the wolf fur and the volume on the woofer cabinet is about 1.71 cubic feet the crossover is also a audio concepts component built for 100 watt system I intend to fill the cabinet space both on the mid-range and the Wolfer with a Q stuff f