One Thing Audio
Quad
ESL, History, Pictures, Manufacturing the Quad
ESL's

A twenty year old stretching jig, In 1975 that is (provided by Willy Lefevbre, May 2001)

Stretching the diaphargm (provided by Willy Lefevbre, May 2001)

Assembling the electrodes (provided by Willy Lefevbre, May 2001)

Final assembly of the panel (provided by Willy Lefevbre, May 2001)

Stretching the diaphargm (provided by Eric van
Olst)

Coating the diaphragm (provided by Eric van Olst)

Heat shrinking the diaphargm (provided by Eric van Olst)

The original Quad stretching jig, now owned by Quad Musicwiedergabe (february 2001)