Quad ESL Loudspeaker
Dick Olsher | Oct 10, 2017 | First Published: Aug 1, 1987 High fidelity took a giant step forward in 1956 with Peter Walker’s introduction of the Quad ESL. Walker’s research efforts had been motivated by his firm belief in the superiority of the electrostatic dipole over the box loudspeaker, but actually to take the economic plunge and market such […]
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