Owner`s manual

Switching On
The mains switch i on the QC – twenty four is a 'push ON push OFF' type.
When the switch is depressed power is applied, when released, the power is
switched off.
 Switch on the required source component.
 Switch on the preamplifier via the ON/OFF switch i. The indicator on
the CD selector button will light.
 Now switch each power amplifier on via the switch b on the rear of the
unit. You will see the valves begin to glow.
Warming Up
Valve amplifiers need time to reach their correct operating temperature.
Allow at least fifteen minutes for the amplifiers to 'warm up' before use.
Warming up should always be done with the volume control at zero.
If you play loud music while the system is cold the output valves will not be
fully operational and the amplifier will be starved of both voltage and
current. The resulting distortion is both unpleasant to listen to and
potentially damaging to both the amplifiers' valves and your loudspeakers.
Intensive use of this equipment before it has properly warmed up will also
shorten the life of your output and rectifier valves.
These factors should especially be borne in mind if you are using sensitive
high performance loudspeakers such as QUAD Electrostatics.
Selecting a Source
The CD, Tuner, Aux 1 and Aux 2 selector buttons, b d and f, operate
identically. Depressing any of these buttons plays the relevant source.
Any of the above inputs can be used to play any audio line level source
regardless of the description on the unit's front panel.
As supplied from the factory, the Phono selector c is also a line level input
and operates in identical fashion to the above inputs.
CD Input
The CD input b is the default input. Regardless of the source that is in use
when you switch the preamplifier off, when you next switch on the unit will
automatically select the CD input.
Switching off the preamplifier will also reset any selected Tape Monitor to
OFF.
Tape 1 Tape 2
Phono
CD
Tuner
Aux 2Aux 1
10
0
3
2
1
5
4 6
9
8
7
b fe h i gdc
CD
Selector
Phono
Selector
Tuner
Selector
Auxiliary
Sources
Tape
Monitors
Volume
Control
On/Off
Switch
Balance
Control
GUARANTEE AND PRODUCT REGISTRATION
Your QUAD equipment is guaranteed against any defect in material and
workmanship for a period of one year from the date of purchase with the
exception of the valves, which are warranted for three months. Proof of
purchase is required for Warranty claims.
Please complete and return the enclosed Warranty registration form. Within
the warranty 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 warranty.
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 void the
warranty.
SERVICE ARRANGEMENTS
If your QUAD equipment requires servicing (including valve replacement)
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.
It is user's responsibility, whether the equipment is under warranty or
otherwise, to ensure that equipment for service is returned carriage paid and
in the original packaging. You should enclose a brief note with your name
and address and the reason for returning the equipment.
ACCESSORIES
The following optional accessories are available.
Accessory Description Part No.
IEC mains cable 2m, fitted with UK plug QUKES2B
IEC mains cable 2m, fitted with European plug QU2P2S2
Double ended RCA phono cable 500mm QP2P2SA
Double ended RCA phono cable 1m QP2P21A
Double ended RCA phono cable 2m QP2P22A
Note: We do not supply loudspeaker cables terminated with 4mm plugs, nor the
plugs themselves.
CARE AND CLEANING
The surface of the equipment may be cleaned with a damp cloth provided
that the power has been removed first. Solvent based cleaning materials
should not be used as they may damage the paint finish.
SAFETY AND OPERATION OF ELECTRICAL PRODUCTS
Misuse of electrical products carries the risk of electrical shock. Your QUAD
equipment is intended for use in a domestic environment. Ensure that all
electrical connections are securely and competently made to the unit before
power is applied. Protect access to the rear of the equipment by careful
placement. Note that the voltage output of the power amplifiers can reach
high peak levels and that metal parts, such as loudspeaker connectors, must
not be touchable while the equipment is powered.
OPERATION
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5