The History of QUAD

1951 - the Quad amplifier was introduced, as a successor to the QAP/12, the now legendary Quad II was launched, a control unit with two monoblock valve amplifiers.

Pcture - 1951, The Quad II (Quad Unit Amplifier Domestic)
control unit and Quad II power amplifier.

1955 - Quad introduced the first electrostatic loudspeaker for home use, the Quad ESL

Picture - Early experiments in electrostatic loudspeakers

1957 to 1966 - Quad developed the world’s first ever full range electrostatic loudspeaker, nicknamed ‘Walkers little wonder’ and later called the ESL-57

Picture - 1957, The world’s first full range electrostatic loudspeaker.
“ Walker’s Little Wonder.”

1967 – From valves to transistors. The Quad 33 and Quad 303.

Picture - 1967, The Quad 33 and Quad 303

1975 – The Quad 405 featured a clear advanced in amplifier design christened Current Dumping.

Picture - 1975, The Quad 405

1979 – The Quad 44. The modular inputs allow customer to tailor the pre-amplifier to his requirements now and in the future.

Picture - 1979, The Quad 44

1981 - Quad introduced a new ESL, the Quad ESL-63.

Picture - 1981, Enter FRED, the new ESL 63

1985 - Production of the ESL 57 stopped, there were about 60.000 produced.

2000 - Quad introduced a new ESL-system, the 98 series.

December 12, 2003 - The passing of one of the audio world's great luminaries.

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