Quad ESL 988 Owners Manual

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2 IMPORTANT NOTES European Union Directives Quad equipment is designed to comply with the legal provisions of EU Dir\ ectives 89/336/EC and 72/23/EEC. The standards which have been applied were those in force at the time of the introduction of the product. The product bears the CE mark: Compliance cannot guarantee perfect performance. In the very rare circum\ stance that you experience problems you should first try to locate and remedy t\ he origin of any disturbance. A further option is to relocate the Quad equipment in order to reduce the interference. Your dealer should be able to provide assistance if the problem persists. FCC Rule 15 Class B This equipment has been tested and complies with the limits for a Class \ B device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential inst\ allation. This equipment generates, uses and can radiate radio frequency energy and, if\ not installed and used in accordance with the instructions, may cause harmfu\ l interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipm\ ent does cause interference to radio or television reception, which can be determined b\ y turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Re orient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a mains circuit different to thatto which the receiver is attached Consult the dealer or an experienced radio/TV technician for help This Class B apparatus meets all the requirements of the Canadian Interf\ erence Causing Equipment Regulations. Information to the user Alteration or modifications carried out without appropriate authorisatio\ n may invalidate the users right to operate the equipment. It is always good practice to switch off equipment before connecting or disconnecting signal leads. This will prevent unpleasant and loud noises coming from the loudspeakers and avoid the risk of damage to equipment. This equipment is double insulated and does not need a safety earth. It\ is important, though, that any equipment connected to it is earthed accordi\ ng to the manufacturers instructions. This becomes more important as the number of units which are connected together increases. Noise Pollution Please be aware that very high sound pressure levels can cause permanent\ damage to your hearing and also severe annoyance to neighbours.

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3 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.

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IAG House Sovereign Court Ermine Business Park Huntingdon Cambs PE29 6XU England Telephone: +44 (0) 1480 447700 Facsimile: +44 (0) 1480 431767 email: info@quad-hifi.co.uk website: www.quad-hifi.co.uk