QUAD ESL-989, ESL-988 User Manual

ESL-988 & ESL-989 Electrostatic Loudspeakers Instruction Manual

CONTENTS

IMPORTANT NOTES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

PACKING LISTAND UNPACKING THE EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . 3

GUARANTEE AND PRODUCT REGISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SERVICE ARRANGEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

CONNECTION PANEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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IMPORTANT NOTES European Union Directives

Quad equipment is designed to comply with the legal provisions of EU Directives 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 circumstance that you experience problems you should first try to locate and remedy the origin of any disturbance. Afurther 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 installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by 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 that to 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 Interference Causing Equipment Regulations.

Information to the user

Alteration or modifications carried out without appropriate authorisation may invalidate the user’s 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 according 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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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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GUARANTEE AND PRODUCT REGISTRATION

Your Quad equipment is guaranteed against any defect in material and workmanship for one year from the date of purchase (proof of purchase required). We ask you to complete and return the enclosed Warranty Registration Form (UK). This will also enable us to keep you informed of future Quad products. Within the guarantee period, Quad will undertake replacement of defective parts free of charge provided that the failure was not caused by misuse, accident or negligence. Your statutory rights within the territory in which you purchased the equipment are not affected by this guarantee.

Quad carries out a regular review of its products and reserves the right to adjust the specifications and performance from time to time.

There are no user replaceable or serviceable parts inside this equipment. Unauthorised attempts to service or modify this product will invalidate the warranty.

SERVICE ARRANGEMENTS

If your Quad equipment requires servicing you should return it to the dealer from whom the equipment was purchased.

If you are abroad and there is no suitable dealer in your area, please contact the distributor for the country in which it was purchased or Quad Electroacoustics Ltd.

Equipment returned for service should use the original packing. You should enclose a brief note with your name and address and the reason for returning the equipment.

ACCESSORIES

Quad accessories are designed to match Quad equipment and to provide the best possible performance.

Please contact your dealer or Quad direct for further information.

Item Order No

AC power lead 3m with Euro/13A 3 pin plug (3A fuse) QUKES23 AC power input connector Euro/straight PSR0413

Note: We do not supply loudspeaker cables terminated with 4mm plugs nor the 4mm plugs themselves.

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