QUAD 99 Instruction Manual
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QUAD 99 Instruction Manual

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99
99 Stereo Power Amplifier and
99 Mono Power Amplifier
Instruction Manual
CONTENTS
IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
GUARANTEE AND PRODUCT REGISTRATION . . . . . . . . . . . . . . . 3
SERVICE ARRANGEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CARE & CLEANING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLING THE AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATING THE AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3
1

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Summary of Contents for QUAD 99

  • Page 1: Table Of Contents

    99 Stereo Power Amplifier and 99 Mono Power Amplifier Instruction Manual CONTENTS IMPORTANT NOTES ....... . . 2 INTRODUCTION .

  • Page 2: Important Notes

    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.

  • Page 3: Introduction

    INTRODUCTION The Quad 99 power amplifier has an advanced specification. As this unit is capable of generating extremely high power outputs it is particularly important that you read the following instructions with particular care. Although this amplifier has primarily been designed for use with Quad 99 Series components, it may be connected to any preamplifier with an output level of .775V (0dBu) or higher.

  • Page 4: Accessories

    SAFETY AND OPERATION OF ELECTRICAL PRODUCTS All electrical products carry with them the risk of electrical shock if they are misused. Quad 99 series equipment is intended for use in a domestic environment. It is important that all electrical connections are competently and securely made to the unit before power is applied.
  • Page 5 Quad 99 amplifier will work within standard tolerances of this voltage. The mains supply fuse of the Quad 99 amplifier is accessible on the rear panel when the IEC mains plug has been removed. In the rare event that it has broken, you should first check for any obvious cause before replacing the fuse with one of the correct rating and type.
  • Page 6 Signal Input Connections When the 99 amplifier is used as part of a 99 system, you should use the 99 AMPBUS lead provided to connect to the output of the 99 preamplifier or the 99AV processor.
  • Page 7 99 mono amplifiers for bi-amping. As all Quad 99 series amplifiers are gain matched, you can use a pair of 99 mono amplifiers in combination with a Quad 99 stereo power amplifier. When bi-...
  • Page 8 Bi-amping for mono power amplifier Connecting to extenal sources. When the Quad amplifier is used with equipment other than as part of a 99 system, you should use an appropriate lead to connect to the RCA phono input and the channel selection switch should be set to INPUT.
  • Page 9 Special care should be take when bi-wiring as phase becomes critical, (see page 12 for further details). A note concerning placement When installed in a domestic system at the base of a 99 Series equipment stack, the amplifier will be perfectly satisfactory provided there is sufficient ventilation.
  • Page 10 Front Panel Indications When used as part of a 99 system When the Quad 99 preamplifier or AV processor is in STANDBY mode, the front panel indicator will light a steady red. When you activate the system the indicator will glow green and stay green during normal operation.

  • Page 11: Troubleshooting

    Before making any checks on system wiring, in particular AMPBUS cables, please ensure the amplifier is switched off and the volume control set at minimum. If you are in any doubt as to the satisfactory operation of your Quad 99 S Y M P T O M POSSIBLE CAUSE No front panel indication Mains outlet faulty or not switched on.
  • Page 12 Quad Electrostatic Loudspeakers The 99 power amplifiers are fully compatible with the Quad ESL-63, ESL-988 and ESL-989 loudspeakers. It should not be used with the earlier model ESL which could be damaged by signal peaks unless a protection circuit is fitted inside each loudspeaker – please contact Quad Electroacoustics for details.

  • Page 13: Specifications

    Series hi-fi equipment, please consult your appointed QUAD dealer. SPECIFICATIONS - 99 STEREO POWER AMPLIFIER Input Specifications RCA Phono Input Input Impedance 33kΩ Input Sensitivity (for max. output) 775mV Frequency Response (±3 dB) 3Hz - 50kHz Signal/Noise (ref 995mV input ‘A’ wtd) -110dB (20Hz-20kHz) (ref.

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