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Serial Number
Purchase date
Service Contract Number
VARIOUS REGULATORY AGENCIES REQUIRE THAT WE BRING THE FOLLOWING
INFORMATION TO YOUR ATTENTION. PLEASE READ IT CAREFULLY.
WARNING: TO PREVENT FIRE OR SHOCK
HAZARD, DO NOT EXPOSE THIS UNIT TO
RAIN OR MOISTURE.
The Mcintosh you have purchased is a Model
C 504. It has a serial number located on the rear panel
of the chassis. Record that serial number here:
The model, serial number and purchase date are
important to you for any future service. Record the
purchase date here:
Upon application, Mcintosh Laboratory provides a
Three-Year Service Contract. Your Mcintosh authoriz
ed Service Agency can expedite repairs when you pro
vide the Service Contract with the instrument for re
pair. To assist, record your Service Contract number
here:
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Your C 504 Stereo Preamplifier
will give you many years of pleasant and
satisfactory performance. If you
have any questions, please contact:
CUSTOMER SERVICE
Mcintosh Laboratory Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3512
Take Advantage of 3 years
of Contract Service-
Fill in the Application NOW.
An application for A THREE YEAR SERVICE CONTRACT is included with this manual.
The terms of the contract are:
1. Mcintosh will provide all parts,
materials and labor needed to return the
measured performance of the instru
ment to the original performance limits.
The SERVICE CONTRACT does not
cover any shipping costs to and from
the authorized service agency or the
factory.
2. Any Mcintosh authorized service agency
will repair Mcintosh insturments at nor
mal service rates. To receive service
under the terms of the SERVICE CON
TRACT, the SERVICE CONTRACT CER
TIFICATE must be presented when the
instrument is taken to the service agency.
3. Always have service done by a
Mcintosh authorized service agency. If
the instrument is modified or damaged
as a result of unauthorized repair, the
SERVICE CONTRACT will be cancelled.
Damage by improper use or mishan
dling is not covered by the SERVICE
CONTRACT.
4. The SERVICE CONTRACT is issued to
you as the original purchaser. To pro
tect you from misrepresentation, this
contract cannot be transferred to a se
cond owner.
5. To receive the SERVICE CONTRACT,
your purchase must be made from a
Mcintosh franchised dealer.
6. Your completely filled in application for
the SERVICE CONTRACT must be
postmarked within 30 days of the date
of purchase of the instrument.
7. To receive the SERVICE CONTRACT, all
information on the application must be
filled in. The SERVICE CONTRACT will
be issued when the completely filled in
application is received by Mcintosh
Laboratory Incorporated in Binghamton,
New York.
Copyright 1980 by Mcintosh Laboratory Inc. -1-
Contents
INSTALLATION 2, 3
HOW TO CONNECT AND
BACK PANEL INFORMATION 4
FRONT PANEL INFORMATION AND USE OF CONTROLS 6, 7
PERFORMANCE LIMITS 8 PERFORMANCE CHARTS 9
TECHNICAL DESCRIPTION 10 BLOCK DIAGRAM 12, 13
MclNTOSH THREE YEAR SERVICE CONTRACT
