Title: Crossover network for a multi-element electrostatic loudspeaker system

Abstract: A four-way electrostatic speaker system includes four step-up transformers which have their primary windings connected in a series-parallel circuit across an audio signal source. Electrostatic drivers connect to the secondary windings of each step-up transformer and each forms a parallel resonant circuit which is tuned to an audio frequency within the operating range of the electrostatic driver. The impedance reflected into the primary winding of each step-up transformer is such that the attached electrostatic driver predominantly receives frequencies within its operating range. The necessity of a separate crossover network is thus eliminated.

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Inventors: Elliott, Douglas M. (Milwaukee, WI, US)
Wiggins, Alpha M. (Punta Gorda, FL, US)

Application Number: 481533
Filing Date: 1974-06-21
Publication_date: 1976-01-06
Assignee: Koss Corporation (Milwaukee, WI)
Primary Class(es): 381/99 381/191
Other Classes:
US Patent Ref:

2934611

Apr, 1960

Lindenberg

179/111.

Other Refs: 345,342791,335

Mar, 1931	UK
Feb, 1958	UK

Primary Examiner: Cooper, William C.
Assistant Examiner: Stellar, George G.
Attorney: Quarles & Brady