McIntosh C41 User manual

McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 139 3-2699 Phone: [phone] FAX: [phone]
Owners
Manual
C41
C41 Audio Control Center

2
IMPORTANT SAFETY
INSTRUCTIONS!
PLEASE READ THEM BEFORE
OPERATING THIS EQUIPMENT.
WARNING - TO REDUCE RISK OF
FIRE OR ELECTRICAL SHOCK, DO
NOT EXPOSE THIS EQUIPMENT TO
RAIN OR MOISTURE.
The lightning flash with arrowhead,
within an equilateral triangle, is intended
to alert the user to the presence of
uninsulated dangerous voltage within
the products enclosure that may be of
sufficient magnitude to constitute a risk
of electric shock to persons.
NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL.
To prevent the risk of electric shock, do not remove cover or
back. No user serviceable parts inside.
The e clamation point within an equi-
lateral triangle is intended to alert the
user to the presence of important
operating and maintenance (servic-
ing) instructions in the literature ac-
companying the appliance.
General:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Warning: To reduce risk of fire or electrical shock,
do not expose this equipment to rain or moisture.
This unit is capable of producing high sound pres-
sure levels. ontinued exposure to high sound pres-
sure levels can cause permanent hearing impair-
ment or loss. User caution is advised and ear protec-
tion is recommended when playing at high volumes.
6. aution: to prevent electrical shock do not use this
(polarized) plug with an extension cord, receptacle
or other outlet unless the blades can be fully in-
serted to prevent blade exposure.
Attention: pour pevenir les chocs elecriques pas
utiliser cette fiche polarisee avec un prolongateur,
une prise de courant ou un autre sortie de courant,
sauf si les lames peuvent etre inserees afond ans en
laisser aucune partie a decouvert.
7. Unplug this equipment during lightning storms or
when unused for long periods of time.
. Only use attachments/accessories specified by the
manufacturer.
Installation:
9. The equipment shall be installed near the AC Socket
Outlet and the disconnect device shall be easily acces-
sible.
10. Do not block any ventilation openings. Install in accor-
dance with the manufacturers instructions.
11. Do not install near any heat sources such as radiators,
heat registers, stoves, or other equipment (including
amplifiers) that produce heat.
12. Do not use this equipment near water.
13. Do not expose this equipment to dripping or splashing
and ensure that no objects filled with liquids, such as
vases, are placed on the equipment.
14. Use only with the cart, stand, tripod,
bracket, or table specified by the manu-
facturer, or sold with the equipment.
When a cart is used, use caution when
moving the cart/equipment combination
to avoid injury from tip-over.
onnection:
15. Connect this equipment only to the type of AC power
source as marked on the unit.
16. Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the equipment.
17. Do not defeat the safety purpose of the polarized or
grounding-type plug.

3
Customer Service
Technical Assistance
Please Take A Moment
Thank You
Copyright 2000 ã by McIntosh Laboratory, Inc.
The serial number, purchase date and McIntosh dealer
name are important to you for possible insurance claim or
future service. The spaces below have been provided for
you to record that information:
Your decision to own this McIntosh C41 Audio Control
Center ranks you at the very top among discriminating mu-
sic listeners. You now have The Best. The McIntosh
dedication to Quality, is assurance that you will receive
many years of musical enjoyment from this unit.
Please take a short time to read the information in this
manual. We want you to be as familiar as possible with all
the features and functions of your new McIntosh.
Serial Number:
Purchase Date:
Dealer Name:
If it is determined that your McIntosh product is in need of
repair, you can return it to your dealer. You can also return
it to the McIntosh Laboratory Service Repair department.
For assistance on factory repair return procedure, contact
the McIntosh Repair Department at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: [phone]
Fax: [phone]
If at any time you have questions about your McIntosh
product, contact your McIntosh dealer who is familiar with
your McIntosh equipment and any other brands that may
be part of your system. If you or your dealer wish addi-
tional help concerning a suspected problem, you can re-
ceive technical assistance for all McIntosh products at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: [phone]
Fax: [phone]
A polarized plug has two blades with one wider
than the other. A grounding type plug has two
blades and a third grounding prong. The wide
blade or the third prong are provided for your
safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the
obsolete outlet.
1 . Do not overload wall outlets, extension cords or inte-
gral convenience receptacles as this can result in a risk
of fire or electric shock.
19. To completely disconnect this equipment from the AC
Mains, disconnect the power supply cord plug from the
AC receptacle.
are of Equipment:
20. Clean only with a dry cloth.
21. Do not permit objects or liquids of any kind to be
pushed, spilled and/or fall into the equipment through
enclosure openings.
22. Unplug the power cord from the AC power outlet
when left unused for a long period of time.
Repair of Equipment:
23. Refer all servicing to qualified service personnel. Ser-
vicing is required when the equipment has been dam-
aged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen
into the equipment, the equipment has been exposed to
rain or moisture, does not operate normally, or has
been dropped.
24. Do not attempt to service beyond that described in the
operating instructions. All other service should be re-
ferred to qualified service personnel.
25. When replacement parts are required, be sure the ser-
vice technician has used replacement parts specified by
McIntosh or have the same characteristics as the origi-
nal part. Unauthorized substitutions may result in fire,
electric shock, or other hazards.
26. Upon completion of any service or repairs to this prod-
uct, ask the service technician to perform safety checks
to determine that the product is in proper operating
condition.

4
Performance eatures
Introduction
·Listen and Record ircuitry
Separate Record and Listen circuits allow you to record
one program source while listening to another.
·Two Signal Processor Loops
Separate front panel switched Signal Processor Loops are
provided for the listen and record circuits.
·Multiple Inputs
Eight high level inputs and one MM phono input provide
for all popular program sources. The Aux input can be
switched to accept a moving magnet phono cartridge.
·Tone ontrol Bypass
At the flat settings the Bass and Treble control circuit ele-
ments are removed from the Listen signal path.
·Electronic Input Switching
Digital Logic integrated circuits drive Electromagnetic
Switches on all inputs and operating functions for reliable,
noiseless, distortion free switching.
·Remote ontrol
A Remote Control is included that will allow control of
major front panel controls and switches.
·Balanced and Unbalanced Inputs/Outputs
Seven unbalanced inputs, and three unbalanced outputs are
provided. One balanced input, and one balanced output are
also included.
·Output Switching
Front panel Output push-buttons control two switched out-
puts that allow you to send signals to two separate power
amplifiers.
The C41, Remote Controlled Audio Control Center is a el-
egant instrument that allows you to enjoy outstanding mu-
sic reproduction. It includes a wide range of convenient
operating functions to enhance your listening experience.
The classic McIntosh C41 will perfectly complement a
McIntosh stereo power amplifier for a stereo system of in-
comparable performance and style.
Table of Contents
Safety Instructions ............................................................ 2
Thank You and Please Take a Moment............................. 3
Technical Assistance and Customer Service .................... 3
Table of Contents and General Notes ............................... 4
Introduction ...................................................................... 4
Performance Features ....................................................... 4
Dimensions ....................................................................... 5
Installation ........................................................................ 6
Rear Panel Connections and Switch ................................. 7
How to Connect ................................................................
How to Connect for Additional Room(s) ......................... 9
How to Connect for Video Switching ............................. 10
Front Panel Controls, Push-Buttons and Switch ............ 11
How to Operate ............................................................... 12
Remote Control Push-Buttons ........................................ 14
How to Operate the Remote Control .............................. 15
Performance Charts ........................................................ 16
Specifications ................................................................. 1
Packing Instruction ......................................................... 19
General Notes
1. The following Connecting Cable is available from the
McIntosh Parts Department:
Data and Power Control Cable Part No. 170-202
Six foot, conductor shielded, with two 1/8 inch stereo
mini phone plugs.
. For additional connection information, refer to the owners
manual(s) for any component(s) connected to the C41.
3. A McIntosh Power Controller may be added to the C41 to
provide AC Power Switching to components that do not have
Power Control Connections. See your McIntosh Dealer for
additional information.
4. Pin configuration for the XLR Balanced Connectors on the
C41:
PIN 1: Shield or ground
PIN : + input
PIN 3: - input
Pin 1Pin 2
Pin 3
Pin 2

5
The following dimensions can assist in determining the
best location for your C41. There is additional information
on the next page pertaining to installing the C41 into cabi-
nets.
C41 Dimensions
17-1/2"
44.45cm
4-5/8"
11.75cm
6"
15.24cm
17"
43.18cm
18-3/8"
46.67cm
3/16"
0.48cm 4-13/16"
12.22cm
14"
35.56cm 1"
2.54cm
13 -1/4"
33.65cm
17"
43.18cm
5/8"
1.59cm
Front View of the C41
Rear View of the C41
Side View of the C41
5-3/8"
13.69cm
13/16"
2.06cm
Introduction, Performance eatures and Dimensions

6
Installation
The C41 can be placed upright on a table or shelf, standing
on its four 1 inch high feet. The four feet may be removed
from the bottom of the C41 when it is custom installed as
outlined below. The four feet together with the mounting
screws should be retained for possible future use if the C41
is removed from the custom installation and used free
standing. It also can be custom installed in a piece of furni-
ture or cabinet of your choice. The required panel cutout,
ventilation cutout and unit dimensions are shown.
Always provide adequate ventilation for your C41. Cool
operation ensures the longest possible operating life for
any electronic in-
strument. Do not
install the C41 di-
rectly above a heat
generating compo-
nent such as a high
powered amplifier.
If all the compo-
nents are installed
in a single cabinet,
a quiet running
ventilation fan can
be a definite asset
in maintaining all
the system compo-
nents at the coolest
possible operating
temperature.
A custom cabi-
net installation
should provide the
following mini-
mum spacing di-
mensions for cool
operation. Allow at
least 2 inches (5.0
cm) above the top,
2 inches (5.0 cm)
below the bottom
and 1 inch (2.54
cm) on each side
of the Control
Center, so that air-
flow is not ob-
structed. Allow 20
inches (50. cm)
depth behind the
front panel. Allow
Installation
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1 inch (2.54 cm) in front of the mounting panel for knob
clearance. Be sure to cut out a ventilation hole in the
mounting shelf according to the dimensions in the drawing.

7
C41 Rear Panel Connections and Switch
Connect the C41
power cord to a live
AC outlet. Refer to
information on the
back panel of the
C41 to determine
the correct voltage
The EXT (e ter-
nal) SENSOR jack
allows the connec-
tion of a McIntosh
IR sensor for re-
mote operation
DATA PORTs send
signals to compatible
source components to
allow control with the
remote control
POWER CONTROL
MAIN Output sends a
turn-on signal to a
McIntosh Power Am-
plifier when the C41
is turned on
POWER CONTROL
1 and 2 Outputs
send a turn-on signal
to a McIntosh Power
Amplifier when the
C41 Front Panel
Output 1 and/or 2 is
on
MAIN Balanced
OUTPUTS contain
Listen program
signals at all times
LISTEN MAIN
OUTPUTS con-
tain Listen pro-
gram signals at
all times
LISTEN OUTPUTS
1 and 2 contain Lis-
ten signals and turn
on/off with the front
panel OUTPUTS
push-buttons
LISTEN PROCESSOR
FROM and TO allows
an e ternal signal pro-
cessor to be connected
for use in the Listen
mode
RECORD PROCESSOR
FROM and TO allows an
e ternal signal processor
to be connected for use in
the Record mode
CD1 balanced INPUTS
accept high level program
source signals
TAPE 1, TAPE 2,
T3/DVD, TUNER,
CD2, VIDEO IN-
PUTS accept high
level program source
signals
TAPE 1, TAPE 2
and T3/DVD
OUTPUTS con-
tain record out
signals
AUX accepts high level
program source signals,
PH accepts signals from a
Moving Magnet phono
cartridge, and the small
slide switch selects which
one of these two inputs is
active when either front
panel LISTEN or
RECORD switch is set to
PH/AUX
POWER CONTROL
ACC Output sends a
turn-on signal to a
McIntosh Power
Control unit when the
C41 is turned on
GND terminal
accepts a
ground wire
from a turn-
table

8
McIntosh D/A Converter
McIntosh CD Transport
How to Connect the C41
How to Connect the C41
1. Connect cables from the Balanced MAIN OUTPUTS to
the power amplifier inputs.
Note: If your power amplifier has only unbalanced inputs, the
Main Unbalanced Outputs can be used.
2. Connect cables from the C41 LISTEN PROCESSOR
FROM jacks to the outputs of a signal processor. Con-
nect cables from the C41 LISTEN PROCESSOR TO
jacks to the signal processor inputs.
Note: Connect a signal processor to the RECORD
PROCESSOR jacks in a similar manner.
3. Connect cables from the C41 CD INPUTS to the out-
puts of a McIntosh D/A Converter and CD Transport.
4. Connect cables from the C41 TUNER INPUTS to the
outputs of a tuner.
5. Connect cables from the C41 TAPE 1 OUTPUTS to the
record inputs of the tape recorder and the C41 TAPE 1
INPUTS to the tape recorder outputs.
Note: Connect any additional recorders to the TAPE or T3/
DVD jacks in a similar manner.
6. Connect a Power Control cable from the C41 MAIN
POWER CONTROL jack to the Power Control In of a
McIntosh power amplifier.
7. Connect a Power Control cable from the C41 POWER
CONTROL ACC jack to the Power Control In of a
McIntosh Tuner and then onto the next McIntosh
Source Component.
. Connect a Data cable from the C41 CD DATA PORT to
the DATA IN of a McIntosh D/A Converter and CD
Transport.
9. Connect a Data cable from the C41 TUNER DATA
PORT to the DATA IN of a McIntosh tuner.
10. Plug the C41 AC power cord into a live AC outlet.
InOut
Listen Signal
Processor
McIntosh Power Amplifier
McIntosh Tuner
To AC Outlet
OutIn
Tape Recorder

9
How to Connect for Additional Room(s)
How to Connect for Additional Room(s)
1. Connect cables from the LISTEN 1 OUTPUTS to the
Second Power Amplifier inputs.
Note: A Third Power Amplifier may be connected to the Listen
OUTPUTS for an additional room.
2. Connect a Power Control cable from the C41 POWER
CONTROL 1 jack to the POWER CONTROL IN of a
McIntosh power amplifier.
3. Connect an RG6 or RG59U coaxial cable from the EXT
(external) Sensor jack to an R649 wall mounted IR
sensor(s).
Note: A second R649 wall mounted IR sensor may be
connected for an additional room by using a suitable
coaxial splitter that will pass DC (direct current).
McIntosh Sensor

1
How to Connect for Video Switching
McIntosh Audio/Video Selector
1. Connect a Data cable from the C41 VIDEO and T3/
DVD DATA PORTS, using a Y Adapter, to the
MVS-3 DATA IN jack.
2. Connect a Power Control cable from the C41 ACC
POWER CONTROL jack to the Power Control In of a
McIntosh DVD/CD player.
3. Connect the MVS-3 CONTROL CENTER AUDIO
OUTPUTS to the C41 VIDEO INPUTS.
4. Connect the MVS-3 VIDEO MONITOR OUTPUT to a
TV or Monitor.
5. Connect cables from the McIntosh DVD Player, the
Video Output(s) to the MVS-3 V-AUX VIDEO INPUT
and the Data Control In to the MVS-3 DATA OUTPUT
V-AUX jack.
6. Connect a cable from the McIntosh DVD Player; Au-
dio Outputs to the C41 T3/DVD AUDIO INPUTS.
7. Connect other video source components to the appro-
priate audio and video and data jacks on the MVS-3.
How to Connect for Video Switching
Monitor/TV
McIntosh DVD/Video CD/CD Player
Y Adapter

11
C41 ront Panel Controls, Push-Buttons and Switch
POWER switch
turns all AC
power completely
ON or OFF
RECORD switch
selects the program
signals that are fed
to the TAPE Outputs
LIS PROCESSOR
push-button turns
the Listen Proces-
sor loop on or off
LISTEN switch selects
the program signals that
are fed to the MAIN and
OUTPUTS 1&2
VOLUME control
adjusts the volume
level at the balanced
and unbalanced out-
puts as well as adjust-
ing input level cali-
bration
REC PROCESSOR
push-button turns
the Record Proces-
sor loop on or off
MONO push-button
combines left and right
stereo signals to mono
at the MAIN and
OUTPUTS 1&2
MUTE push-
button mutes
audio in all
Listen outputs
OUTPUTS 1 and 2 push-
buttons allow the C41 to
switch AC power control
and audio to two separate
stereo power amplifiers
STANDBY/ON push-
button turns the C41
ON or OFF (Standby)
HEADPHONES
jack accepts dy-
namic headphones
IR Sensor receives
commands from a
remote control
LOUDNESS provides
frequency response
contoured to compen-
sate for the behavior of
the human ear at softer
listening levels
TREBLE control provides
12dB boost or cut with a
flat center position
BASS control provides
12dB boost or cut with
a flat center position
The BALANCE control
adjusts the relative vol-
ume balance between
channels

12
Power On
Press the POWER switch to ON. The Red LED, above the
STANDBY/ON Pushbutton, lights to indicate the C41 is in
Standby Mode. To turn
on the C41 press the
STANDBY/ON push-
button. Refer to figure 1.
Note: You may also turn
on the C41 using
the remote control.
Source Selection
Select the desired listen-
ing source with the LIS-
TEN Switch.
PH/AUX Inputs
When using a phono player with a moving magnet car-
tridge connected to the PH/AUX inputs, set the PH-AUX
switch to the PH position.
When using an auxiliary
program source compo-
nent connected to the PH/
AUX inputs, set the PH-
AUX switch to the AUX
position. Refer to figure 2.
Volume ontrol
Adjust the VOLUME con-
trol for the desired listen-
ing level.
Loud Switch
Press the LOUD push-button to add loudness bass compen-
sation to the volume control for improved low level listen-
ing.
Balance ontrol
Adjust the BALANCE control as needed to achieve ap-
proximately equal listening volume levels in each loud-
speaker. Turn the BALANCE to the Left to emphasize the
left channel by reducing the level of the right channel. Turn
the BALANCE to the right to emphasize the right channel
by reducing the level of the left channel.
Bass and Treble ontrols
Adjust the BASS and TREBLE controls to suit your listen-
ing preferences. The bass or treble intensity can be in-
creased with clockwise rotation and decreased with coun-
How to Operate the C41
terclockwise rotation. All tone control circuit elements are
removed from the signal path when the controls are in the
center or flat position.
Mono
Press the MONO push-button to combine left and right ste-
reo signals to mono at all MAIN, OUTPUT 1&2 and
HEADPHONES Outputs.
Mute
Press the MUTE push-button to mute audio in all Listen
outputs.
Output 1 and 2
Press OUTPUT 1 or 2 push-buttons to send audio to sepa-
rate power amplifi-
ers connected to the
rear panel OUT-
PUTS 1 or 2. You
can press either
push-button indi-
vidually or both to-
gether. Refer to fig-
ure 3.
How To Make A Tape Recording
The separate RECORD and LISTEN switches allow you to
make a tape recording from one program source while lis-
tening to another. You can also listen (monitor) to the re-
corded signal off the tape, a fraction of a second later, dur-
ing recording when a three head tape recorder is used.
1. Select the desired program source to record with the
front panel RECORD Selector Switch.
. Adjust the record level using the tape recorder volume
control.
3. To listen to the tape playback of the program source just
recorded, turn the LISTEN switch to the desired input.
Note: The C41 RECORD OUTPUTS are not affected by the
VOLUME or BALANCE controls. To listen to a different
program source while recording, turn the LISTEN
switch to the desired source. The recording process will
not be affected and will continue.
Figure 1
Figure 3
Figure 2

13
How to Operate the C41
How to use a Signal Processor
Access and operate a signal processor connected to the
LISTEN PROCESSOR jacks by pressing the front panel
LIS (Listen) PROCESSOR push-button. This processor
will affect only the
LISTEN signals.
Refer to figure 4.
Access and operate
a signal processor
connected to the
RECORD PRO-
CESSOR jacks by
pressing the front panel REC (Record) processor push-but-
ton. This processor will affect only the RECORD signals
sent to tape recorders.
Reset of Microprocessors
In the event that the controls of the C41 stop functioning,
there is a built-in user reset function. Press the POWER
switch to the OFF position, wait for two minutes. Then
press the POWER switch to ON, the Red LED above the
STANDBY/ON Pushbutton, lights to indicate the C41 is in
Standby Mode. To turn on the C41 press the STANDBY/
ON push-button.
Note: The above condition is usually caused by either
interruptions in AC power and/or major changes in
voltage.
Figure 4

14
Remote Control Push-Buttons
Selects one of the twelve
High Level Audio/Video
Sources or Phono Input
Turns AC Power ON or OFF to
certain McIntosh Components
when connected via the Data Port
Adjusts the volume
level up or down
Selects CD Player or
Tape Recorder Functions
and also performs various
functions on a variety of
McIntosh Components
Press to Power the C41
ON or OFF
Use to select tuner
presets, disc tracks or
any numbered opera-
tion
Selects Switched Output
2, FM Tuner Operating
Functions and Track Se-
lection on certain McIn-
tosh CD Players
Mutes the audio
Note: The Remote Control push-buttons that are
highlighted in white are for use with other
McIntosh Control Centers.
Press MODE to switch
between Stereo or Mono
Modes
Selects Switched Output
1, AM Tuner Operating
Functions and Disc Selec-
tion on certain McIntosh
CD Players
Selects On Screen Func-
tions for McIntosh DVD
Players and certain CD
Players
Press TRIM to turn the
Loudness Control On or
Off
Selects the Fast Forward
Mode on Disc Players
and Tuning Up the AM/
FM Dial
Selects the Rewind Mode
on Disc Players and Tun-
ing Down the AM/FM
Dial
Selects Functions for
McIntosh Home Control-
ler and as a shift key
when used with the AM
or FM push-buttons to
select Output (Spkr) 1 or
2
Press the push-button
to illuminate the keys Press to review Tuner
Station Presets and se-
lects certain functions on
McIntosh CD Players

15
How to Operate the Remote Control
The supplied remote control is capable of directly control-
ling the functions of contemporary McIntosh Source Com-
ponents connected to the C41. Earlier McIntosh source
components and other brand source components can be
controlled by the C41 with the addition of a McIntosh Re-
mote Control Translator (RCT).
Note: Your McIntosh Dealer can assist you with the
installation and operation of the Remote Control
Translator (RCT).
Mute
Press the MUTE push-button to mute audio at the LISTEN
OUTPUTS 1 and 2. The TAPE OUTPUTS and HEAD-
PHONES output are not affected by the MUTE function.
The MUTE LED above the push-button will flash on and
off to indicate that Mute is active. Press MUTE a second
time to unmute audio.
Mono
Press the MONO push-button to combine left and right ste-
reo signals to mono at LISTEN OUTPUTS MAIN,1, 2 and
HEADPHONE Output.
Trim
Press the TRIM push-button to active the Loudness Com-
pensations circuit.
Input Source Selection
Press any of the twelve input push-buttons to select a pro-
gram source. When one of the Audio/Video Inputs (SAT,
LV, TV, VCR, and VCR2 ) are selected by remote control
the C41 will automatically switch to the VIDEO Input. If
the Front Panel VIDEO is selected, the source device con-
nected to the VIDEO INPUT Jacks will be heard. When the
optional McIntosh MVS Audio/Video Selector is added,
multiple Audio/Video Inputs Sources, such as LV, TV,
VCR, and VCR2 will become available by just pressing the
desired program source push-button on the remote control.
D/Tape Functions
Use these push-buttons to operate a CD player, CD changer
or tape recorder.
Numbered Push-buttons
Press push-buttons 0 through 9 to access tuner station pre-
sets or CD tracks/discs.
Disc and Track
Use the DISC and TRACK push-buttons when a CD player
or changer is being used.
Tuner Push-buttons
Press the AM or FM push-button to select the desired
broadcast band. Press and release the Channel Upp or
Downqpush-button to move from station to station. Press
and hold a Channel Upp or Downq push-button to move
continuously from station to station. Press REVIEW to
start the automatic brief audition of each of the presets
stored in the tuner memory. Press REVIEW a second time
to stop on a station preset and exit the Review process.
Volume
Press the Up or Down VOLUME push-button to raise or
lower the listening volume level.
Note: The TAPE OUPUTS are not affected by volume
changes.
Amplifier Selection
Press HOME push-button followed by the OUTPUT 1 or 2
push-buttons either separately or together, to control the
rear panel OUTPUTS 1 and 2 which can feed signals to a
power amplifier or other accessory component.
Acc On
Press ACC ON to turn the power ON to a McIntosh Disc
Player.
Acc Off
Press ACC OFF to turn the power OFF to a McIntosh Disc
Player.
E
Press E to perform various functions on a variety of McIn-
tosh Components. It will also pause the playing of a disc or
tape player.
Lighting
Press and release the LIGHTING push-button to momen-
tarily illuminate the upper half of the remote control push-
buttons.
Note: While the LIGHTING push-button is being depressed,
the remote control will be unable to send a remote
command. When the LIGHTING push-button is released
the push-buttons will continue to stay illuminated for
approximately three seconds thus allowing you to send
the desired command.

16
Loudness Compensation Range
dB
(Decibel)
Hz (Hertz)












 N    N N N N
dB
(Decibel)
requency Response
Hz (Hertz)
Note: The Loudness Compensation Range is a combination of
the Loudness Circuitry and the Volume Controls
rotational position. When the Loudness Circuit is active,
the first 50% rotation of the Volume Control achieves
maximum loudness compensation, as shown on the
upper curve. When the Volume control is rotated beyond
the 50% point, the loudness compensation is gradually
reduced, as shown by the remaining curves.












 N    N N N N

17
Performance Charts
















 N    N
dB
(Decibel)
Hz (Hertz)
Bass Control Adjustment Range
Treble Control Adjustment Range
Hz (Hertz)
dB
(Decibel)

















 N    N N N N

18
Specifications
Specifications
Frequency Response
+0, -0.5dB from 20Hz to 20,000Hz
Total Harmonic Distortion
0.002% From 20Hz to 20,000Hz
Signal To Noise Ratio
Phono, 90dB below a 10mV input, ( 4db IHF)
High Level, 103dB below rated output, (93db IHF)
Maximum Voltage Output
Phono, 90mV
High Level, 10V
Output Impedance
250 ohms (unbalanced)
500 ohms (balanced)
Sensitivity
Phono, 2.5mV for 2.5V rated output (0.5mV IHF)
High Level, 250mV for 2.5V rated output (50mV IHF)
Input Impedance
Phono, 47K ohms, 65pF
High Level, 22K ohms
Maximum Input Signal
Phono, 90mV
High Level, 10V
Voltage Gain
Phono to Tape Out: 40dB
High Level to Tape Out: 0dB
High Level to Main Out: 20dB
Rated Output Voltage
Main and Outputs 1 and 2: 2.5Vrms
Maximum Voltage Output
Main and Outputs 1 and 2: 10Vrms
Tone ontrols
Bass Control ± 12dB @20Hz
Treble Control ± 12dB @20kHz
Power Requirements
100 Volts, 50/60Hz at 20 watts.
110 Volts, 50/60Hz at 20 watts.
120 Volts, 50/60Hz at 20 watts.
220 Volts, 50/60Hz at 20 watts.
230 Volts, 50/60Hz at 20 watts.
240 Volts, 50/60Hz at 20 watts.
NOTE: Refer to the rear panel of the C41 for the correct
voltage.
Dimensions
17-1/2 (44.5cm) W, 5-3/  (13.7cm) H, 17-1/2 (44.5cm)
D, (including clearance for connectors)
Weight
20.6 pounds (9.3 Kg) net, 35 pounds (15.9 Kg) in shipping
carton

19
Packing Instructions
Packing Instructions
In the event it is necessary to repack the equipment for
shipment, the equipment must be packed exactly as shown
below. It is very important that the four plastic feet are at-
tached to the bottom of the equipment. This will ensure the
proper equipment location on the bottom pad. Failure to do
this will result in shipping damage.
Use the original shipping carton and interior parts only
if they are all in good serviceable condition. If a shipping
carton or any of the interior part(s) are needed, please call
or write Customer Service Department of McIntosh Labo-
ratory. Please see the Parts List for the correct part num-
bers.
Quantity Part Number Description
1 033 3 Shipping carton only
2 033 37 End Cap
1 033 36 Inside carton only
1 033725 Top Pad
1 03400 Bottom pad
1 034037 Inner carton pad
4 01721 Plastic foot
4 100159 #10-32 x 3/4 Machine screw
4 1040 3 #10 x 7/16 Flat washer
1 049259 Shipping carton complete with
all the above parts

McIntosh Part No. 0406 302
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, NY 13903