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INTRODUCTION
The Quad ESL loudspeaker is a full range electrostatic loudspeaker doublet. It
consists of a very light electrically polarised diaphragm suspended between two sets
of concentric annular electrodes. Signal is fed to the electrodes via sequential delay
lines causing the diaphragm to move and the motion of the diaphragm produces a
sound pressure pattern which is an exact replica of that from an ideal source placed
some 30cm behind the plane of the loudspeaker diaphragm.
WARNING: The Quad ESL loudspeaker has very high internal voltages. No
attempt should be made to remove the protective grilles or the baseplate.
Amplifiers which are not short circuit protected may be damaged by the
protection circuits in this loudspeaker and should not be used with the Quad
ESL.
PACKING LIST AND UNPACKING THE EQUIPMENT
The packaging contains the following items:
• The Quad ESL loudspeaker
• AC power lead 3m with 13A 3 pin plug (3A fuse), QUKES23
(UK only)
• Instruction Manual
• Warranty Registration Form
• One set of packing materials comprising:
One set of packing pieces
One cardboard carton
One polythene protective bag
Consult the dealer from whom you purchased the equipment if any of these items is
not present.
The Quad ESL loudspeaker is completely assembled. To remove it from the packing,
spread out the flaps from the open end of the cardboard carton and then invert the
complete pack on to the floor, taking care not to let the contents slide out. Lift off the
cardboard carton.
Please retain the packing materials for future use or return them to your dealer. If
you decide not to keep the packing, please dispose of it sensibly. The paper and
plastics components are recoverable and may be taken to an appropriate recovery
service.
Please retain the user manual and the information concerning the date and place of
purchase of this equipment for future reference.
ESLmanual Feb02 11/02/04 9:14 AM Page 3