electrostatic speaker

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electrostatic speaker

An electrostatic loudspeaker uses a thin plastic diaphragm residing between two perforated metal sheets (the grids or stator plates). The audio signal is applied to the grids out of phase. While one grid causes the diaphragm to push, the other causes it to pull, thus moving air and creating sound. Due to the short traveling distance of the diaphragm compared to the voice coil of the common dynamic speaker, electrostatic speakers have considerably less distortion. They are also very thin, but their bass response is not as great. Units with electrostatic midrange and high-frequency drivers combined with dynamic bass drivers are widely used. Contrast with dynamic speaker. See electrostatic.

A Thin Plastic Diaphragm
Many aficionados love the electrostatic speaker's unique diaphragm design; however, the bass frequencies do not match the intense booming of a good subwoofer.

Combo Electrostatic and Dynamic
To get the best of both worlds, this MartinLogan speaker combines an electrostatic speaker for midrange and high frequencies with a conventional dynamic coil driver for bass frequencies. (Image courtesy of MartinLogan, Ltd., www.martinlogan.com)

Electrostatic and Dynamic Speakers
There is a huge difference between electrostatic speakers and the more common dynamic "cone" speaker. For more information, see dynamic speaker.
References in periodicals archive ?
Tel Aviv, Israel) and Virginia Polytechnic Institute and State University (Blacksburg, Virginia), will develop an innovative electrostatic speaker using a nanoscale active membrane based on graphene, achieving significant energy savings.
Of course, there are negatives to using an electrostatic design; the most significant is that electrostatic speakers must be much larger than their dynamic counterparts to move the same amount of air.
The Claritys are mighty fine electrostatic speakers that seem to defy the laws previously assumed for this type of speaker.
The opportunity to audition a pair of electrostatic speakers in my listening room presented itself.
For the uninitiated (which included yours truly until now), the underlying theory of electrostatic speakers, according to Sound Labs, is actually quite simple.
Research and design from the Motion[R] Series, the upcoming ElectroMotion[TM] Series (available Spring 2011), and the company's ultimate performance ESL and Reserve ESL Series of electrostatic speakers form the backbone of the new in-wall and in-ceiling offerings.
I listened on three systems--the big rig upstairs through large Sound Lab electrostatic speakers, the smaller rig in the studio in the basement via two-way PSB speakers, and through my laptop computer with a pair of Grado SR60 headphones.
Of course I've heard electrostatic speakers in showrooms and
The original Quad electrostatic speakers are held in such high esteem even today that The $ensible Sound published an article by Roy Nakano within the past year on buying, maintaining, and restoring these marvels of decades past.

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