McIntosh C220 User Manual

Tube Preamplifier

C220

Owner’s Manual

McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: [phone] FAX: [phone]

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.

The exclamation point within an
equilateral triangle is intended to
alert the user to the presence of im­portant operating and maintenance
(servicing) instructions in the litera­ture accompanying the appliance.

WARNING - TO REDUCE RISK OF

FIRE OR ELECTRICAL SHOCK, DO

NOT EXPOSE THIS EQUIPMENT TO

RAIN OR MOISTURE.

IMPORTANT SAFETY

INSTRUCTIONS!

PLEASE READ THEM BEFORE
OPERATING THIS EQUIPMENT.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radia­tors, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized
or grounding-type plug. 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.

10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience re­ceptacles, and the point where they exit from the
apparatus.

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.

11. Only use attachments/accessories specified by the
manufacturer.

12. Use only with the cart, stand, tripod, bracket, or
table specified by the manufacturer,
or sold with the apparatus. When a
cart is used, use caution when mov­ing the cart/apparatus combination
to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or
when unused for long periods of time.

14. Refer all servicing to qualified service person­nel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply
cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the appara­tus has been exposed to rain or moisture, does not
operate normally, or has been dropped.

15. 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.

16. To completely disconnect this equipment from the
a.c. mains, disconnect the power supply cord plug
from the a.c. receptacle.

17. The mains plug of the power supply cord shall
remain readily operable.

18. Do not expose batteries to excessive heat such as
sunshine, fire or the like.

2

Thank You

Table of Contents

Your decision to own this McIntosh C220 Tube Preampli­fier ranks you at the very top among discriminating music
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.

Please Take A Moment

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:

Serial Number: __________________________________

Purchase Date: __________________________________

Dealer Name: ___________________________________

Technical Assistance

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
additional help concerning a suspected problem, you can
receive technical assistance for all McIntosh products at:

McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: [phone]
Fax: [phone]

Customer Service

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 Department. For
assistance on factory repair return procedure, contact the
McIntosh Service Department at:

McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: [phone]
Fax: [phone]

Safety Instructions ............................................................

Thank You and Please Take a Moment .............................

Technical Assistance and Customer Service ....................3

Table of Contents .............................................................. 3

General Information .........................................................4

Connector and Cable Information ....................................4

Introduction .......................................................................

Performance Features .......................................................5

Dimensions .......................................................................6

Installation ........................................................................ 7

Connections:

Rear Panel Connections ....................................................

How to Connect the C220 ................................................. 9

Connection Diagram (Separate Sheet) ........ CD1 and CD2

Front Panel Features:

Front Panel Displays, Controls, Push-buttons and Jack . 10

Setup:

How to Operate the Setup Mode .....................................11

Default Settings ...............................................................11

Firmware Version .............................................................11

Balance .............................................................................11

Trim Level Adjustment ....................................................11

Re-Title Inputs ................................................................. 12

Display Brightness .......................................................... 12

Power Control Triggers ................................................... 13

Accessory Power Control ................................................ 13

Auto Tone ........................................................................ 13

Tube LED ........................................................................ 13

Remote Control Selection ............................................... 13

Remote Control:

Remote Control Push-buttons ......................................... 14

How to Operate by Remote Control ...............................15

Operation:

How to Operate the C220 ............................................... 16

Additional Information:

Specifications .................................................................. 18

Packing Instruction .........................................................19

2
3

5

8

Copyright 2006 © by McIntosh Laboratory, Inc.

3

General, Connector and Cable Information

Power
Control

Ground

N/C

Data
Signal

N/C

Data
Ground

PIN 2 PIN 1

PIN 3

PIN 1

PIN 2

PIN 3

Trigger
Control

Ground

N/C

General Information

1. The C220 uses Vacuum Tubes for amplifying the audio
signal. The C220 is designed to have only qualified Ser­vice Personnel perform any part(s) replacement includ­ing all the vacuum tubes.

2. For additional connection information, refer to the
owner’s manual(s) for any component(s) connected to
the C220 Tube Preamplifier.

3. The Main AC Power going to the C220 and any other
McIntosh Component(s) should not be applied until all
the system components are connected together. Failure
to do so could result in malfunctioning of some or all
of the system’s normal operations. When the C220 and
other McIntosh Components are in their Standby Power
Off Mode, the Microprocessor’s Circuitry inside each
component is active and communication is occurring
between them.

4. Up to two Sensors can be wired in parallel for Remote
Control of the C220 from other rooms.

5. Balanced and Unbalanced Inputs and Outputs can be
mixed. For example, you may connect signal sources to
Unbalanced Inputs and send signals from the Balanced
Outputs. You can also use Balanced and Unbalanced
Outputs simultaneously, connected to different Power
Amplifiers.

6. A McIntosh Power Controller may be added to the C220
to provide AC Power Switching to components that do
not have Power Control Connections. See your McIn­tosh Dealer for additional information.

Connector and Cable Information

XLR Connectors

Below is the Pin configuration for the XLR Balanced Input
and Output Connectors on the C220. Refer to the diagrams
for connections:
PIN 1: Shield/Ground
PIN 2: + Output
PIN 3: - Output

Power Control and Trigger Connectors

The C220 Power Control and Trigger Output Jacks send
Power On/Off Signals when connected
to McIntosh and other Components. A
1/8 inch stereo mini phone plug is used
for connection to the Power Control
and Trigger Outputs on the C220.

Note: The Data, Power Control and

Trigger Connecting Cable is
available from the McIntosh
Parts Department:

Data, Power Control and Trig­ger Cable Part No. 170-202

Six foot, shielded 2 conductor, with 1/8 inch stereo mini
phone plugs on each end.

Data Port Connectors

The C220 Data Out Ports send Remote Control Signals to
McIntosh Source Components. A 1/8
inch stereo mini phone plug is used for
connection.

4

Introduction

The McIntosh C220 Tube Preamplifier is one of the finest
Tube Preamplifiers ever created. The versatile Preamplifier
provides connections for various input sources and outputs
to drive multiple Power Amplifiers. The C220 reproduc
tion is sonically transparent and absolutely accurate. The
McIntosh Sound is “The Sound of the Music Itself.”

-

Introduction and Performance Features

• Low Distortion

Distortion levels of all types are less than 0.08%. Music is
amplified with total transparency and accuracy.

• Moving Magnet Phono Input

There is a Precision Phono Preamplifier for Moving Mag
net Cartridges.

-

Performance Features

• Electromagentic Input Switching with Level Trim
Adjustment and Title Reassignment

Digital Logic integrated circuits drive Electromagnetic
Switches on all Inputs and operating functions for reliable,
noiseless, distortion free switching. All eight Inputs on the
C220 can be matched in level, so that there are no abrupt
changes in volume levels between the different Inputs.
There is also a Record Monitor function for checking the
progress of a recording. Any of the eight Inputs can have
their Input Title reassigned to match the sources in the
system.

• Balanced Inputs
The Balanced Inputs allow the connection of a source

component using long cable lengths without a loss in sound
quality.

• Precision Tracking Volume Control

Volume levels are controlled by a new Multi-Stage Preci
sion Digitally Controlled Attenuator System with a track­ing accuracy of 0.1dB.

• Variable Rate Volume and Balance Control Selection

The C220 Tube Preamplifier’s Volume and Balance Con
trol Circuitry provides an ideal rate of change with control
rotation.

• Tone Control with Assignable Bypass

The Bass and Treble Control Circuit Elements can be re
moved from the Signal Path of any selected input.

-

-

-

• Phono Tube Saver

When the Phono Input is selected to be Off in the Setup
Mode, the power going to the Tubes performing the Phono
Amplification is removed, thus extending the life of those
two tubes.

• Output Switching

Front panel Output Push-buttons control two Switched
Outputs that allow sending signals to two separate Power
Amplifiers.

• Remote Control

The Remote Control provides control of the C220 operat
ing functions and any McIntosh Source Components con­nected to it.

• External Sensor Input

There are provisions for connecting External Sensors,
which allows for enjoyment of your McIntosh System from
other rooms in your home via the Remote Control.

• Power Control Output and Trigger Assignment

A Power Control connection for convenient Turn-On of
McIntosh Power Amplifiers, Source Components and Ac
cessories is included. Three of the Power Control Ouputs
may be assigned to activate when a given Input is selected.

• Special Power Supply

Fully regulated Power Supplies and a special R-Core Power
Transformer ensure stable noise free operation even though
the power line varies.

-

-

• Alphanumeric Fluorescent Display

The Multifunction Front Panel Display indicates the
Source Selection, Volume and Balance Levels. Setup Mode
Selections and Adjustments are also displayed. The display
intensity is adjustable.

• Precision Parts

Only the finest precision 1% tolerance resistors are used
throughout.

• Fiber Optic Solid State Front Panel Illumination

The even Illumination of the Front Panel is accomplished
by the combination of custom designed Fiber Optic Light
Diffusers and extra long life Light Emitting Diodes
(LEDs). The glass Front Panel ensures the pristine beauty
of the C220 will be retained for many years.

5

Dimensions

17-1/2"

44.45cm

4-5/8"

11.75cm

6"

15.24cm

14-1/2"

36.83cm

15-7/8"

40.32cm

3/16"

0.48cm

4-13/16"

12.22cm

11-1/2"

29.21cm

1"

2.54cm

13-1/4"

33.65cm

17"

43.18cm

5/8"

1.59cm

Front View of the C220

Rear View of the C220

Side View of the C220

5-3/8"

13.69cm

13/16"

2.06cm

75 WATTS

T630maAL 250V

The following dimensions can assist in determining the
best location for your C220. There is additional informa­tion on the next page pertaining to installing the C220 into
cabinets.

Dimensions

6

Installation

4-7/8"

12.38cm

17-1/16"

43.34cm

Cutout Opening for Custom Mounting

C220 Front Panel
Custom Cabinet Cutout

5-3/4"

14.61cm

15-1/2"

39.37cm

15"

38.1cm

Cutout

Opening

for

Ventilation

Cutout Opening for Ventilation

Support
Shelf

Chassis
Spacers

C220 Side View
in Custom Cabinet

C220 Bottom View
in Custom Cabinet

5-13/16"

20.64cm

12-5/16"

31.3cm

Cabinet
Front
Panel

6"

15.24cm

Opening
for Ventilation

Note: Center the cutout Horizontally
on the unit. For purposes of
clarity, the above illustration
is not drawn to scale.

1"

2.54cm

The C220 can be placed upright on a table or shelf, stand­ing on its four feet. It also can be custom installed in a
piece of furniture or cabinet of your choice. The four feet
may be removed from the bottom of the C220 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 C220 is removed from the custom instal­lation and used free
standing. The re­quired panel cutout,
ventilation cutout and
unit dimensions are
shown.
Always provide
adequate ventilation
for your C220. Cool
operation ensures
the longest possible
operating life for any
electronic instrument.
Do not install the
C220 directly above a
heat generating com­ponent such as a high
powered amplifier.
If all the components
are installed in a
single cabinet, a quiet
running ventilation
fan can be a definite
asset in maintaining
all the system com­ponents at the coolest
possible operating
temperature.
A custom cabinet
installation should
provide the following
minimum spacing
dimensions for cool
operation.
Allow at least 6 inch­es (15.24cm) above
the top, 2 inches
(5.08cm) below the
bottom and 1 inch
(2.54cm) on each side

Installation

of the Tube Preamplifier, so that airflow is not obstructed.
Allow 19-1/2 inches (49.53cm) depth behind the front
panel. Allow 1-1/8 inch (2.9cm) 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

75 WATTS

T630maAL 250V

Rear Panel Connections

MAIN OUTPUTS
(Balanced) send
signals to a Power
Amplifier

Connect the C220
power cord to a
live AC outlet.
Refer to informa­tion on the back
panel of your
C220 to deter­mine the correct
voltage for your
unit

MAIN POWER
CONTROL Output
sends a turn-on signal
to a McIntosh Com­ponent when the C220
is turned on

ACCessory (C) POW­ER CONTROL Output
sends a turn-on signal
to a McIntosh Com­ponent when the C220
is switched On/Off. It
may be re-assigned to
switched On/Off via
remote control

TRIGGERS SPKR1 (A) and
SPKR2 (B) Outputs send
Turn-On signals to McIntosh
components. The default set
ting is used with the SPKR1
and SPKR2 Remote Control
Push-buttons. They may be
re-assigned to Switch On
when a desired Input Source
is selected.

SUM DATA PORT sends
data signals from all the
Data Ports to McIntosh
Source Components for
control with the C220
Remote Control

DVD and CD INPUTS
(Balanced) accept high
level program source

-

signals

GND terminal
accepts a ground
wire from a
turntable

MAIN OUTPUTS
sends signals to a
Power Amplifier

Main Fuse holder,
refer to information
on the back panel
of your C220 to de
termine the correct
fuse size and rating

8

TAPE OUT
sends signals
to the input
of a recording
device

OUTPUTS 1 and 2 send signals to
Power Amplifiers and are switched
On/Off with the Front Panel Output
1 and 2 Push-Buttons. They are also

-

controlled by the Remote Control
SPKR 1 and 2 Push-buttons

DATA PORTS send
signals to McIntosh
Source Components
to allow control with
the C220 Remote
Control

EXT SENSOR
connector permits
the connection of a
McIntosh Keypad or
IR Sensor for remote
operation

PHONO accepts
signals from a
Moving Magnet
phono cartridge

TAPE, VCR, SAT, DVD, CD,
CD2 and TUNER, INPUTS
accept high level program
source signals

How to Connect the C220

The C220 has the ability to automatically switch power
On/Off to McIntosh Source Components via the Power
Control connections. The Data Port Connections allow for
the remote operation of basic functions using the C220
Remote Control. With an external sensor connected to the
C220, remote control operation of the system is possible
from another room and/or when the C220 is located in a
cabinet with the doors closed.

The connection instructions below, together with the
C220 Input and Output Connection Diagrams located on
the separate folded sheet, is an example of a typical audio
system. Your system may vary from this, however the ac­tual components would be connected in a similar manner.

For additional information refer to “Connector and
Cable Information” on page 4.

Note: With the addition of a McIntosh Power Controller

and Remote Control Translator connected to the
C220, any McIntosh Classic Components and/or non
McIntosh Components connected to the C220 can be
operated more conveniently. Contact your McIntosh
Dealer for additional information

Power Control Connections:

1. Connect a Control Cable from the C220 POWER
CONTROL ACC(C) Jack to the Power Control In on
the McIntosh Tuner.

2. Connect a Control Cable from the McIntosh Tuner
Power Control Out jack to the McIntosh SACD/CD
Player Power Control In Jack.

3. Connect a Control Cable from the McIntosh SACD/CD
Player Power Control Out jack to the McIntosh Disc
Player, Recorder and Sever Power Control In Jack

4. Connect a Control Cable from the C220 POWER
CONTROL SPKR1 Out jack to the McIntosh Power
Amplifier (Main) Power Control In Jack.

5. Connect a Control Cable from the C220 POWER
CONTROL SPKR2 Out jack to the McIntosh PC-4
Power Control, Power Control Jack.

6. Connect any additional McIntosh Components in a
similar manner, as outlined in steps 1 thru 4.

Data Control Connections:

7. Connect a Control Cable from the C220 TUNER
DATA PORTS Jack to the McIntosh TUNER1 Data In
Jack.

8. Connect a Control Cable from the C220 CD DATA
PORT Jack to the McIntosh SACD/CD Player Data In
jack.

9. Connect a Control Cable from the C220 TAPE DATA

How to Connect the C220

PORT Jack to the McIntosh CD Player, Recorder and
Server Data In jack.

10. Connect any additional McIntosh Components in a
similar manner, as outlined in steps 5 thru 7.

Sensor Connections:

11. Connect a RG59U or RG6U Cable from the C220
SENSOR “F” Connector to the McIntosh Sensor “F”
Connector.

Audio Connections:

12. Connect an Audio Cable from the C220 TUNER
INPUT Jacks to the McIntosh TUNER1 Fixed Output
Jacks.

13. Connect an Audio Cable from the C220 CD INPUT
Jacks to the McIntosh SACD/CD Player Fixed Output
Jacks.

14. Connect an Audio Cable from the C220 TAPE IN­PUT Jacks to the McIntosh CD Player, Recorder and
Server Analog Output Jacks.

15. Connect an Audio Cable from the C220 TAPE OUT­PUT Jacks to the McIntosh CD Player, Recorder and
Server Analog Input 1 Jacks.

16. Connect the Audio Cables coming from the Turntable
to the C220 PHONO INPUT Jacks.

17. Connect an Audio Cable from the C220 OUTPUT
MAIN jacks to the McIntosh Power Amplifier (Main)
Input jacks.

18. Connect an Audio Cable from the C220 OUTPUT 2
jacks to the McIntosh Power Amplifier (Secondary)
Input jacks.

19. Connect any additional McIntosh Components in a
similar manner, as outlined in steps 10 thru 16.

Ground Connections:

20. Connect the Gound Cable coming from the Turntable

to the C220 GND Binding Post.

9

Front Panel Displays, Controls, Push-buttons and Jack

BASS Control pro­vides 12dB boost or
cut with a flat center
position

TREBLE Control
provides 12dB boost
or cut with a flat
center position

IR Sensor receives
commands from a
Remote Control

DISPLAY indicates the
Sources, Volume/Bal­ance Levels, Opera­tional Functions and
Setup Mode Settings

OUTPUTS 1 and 2 Push-buttons
with indicators, allow the C220 to
switch Power Control and Audio to
two separate Stereo Power Ampli­fiers. It is also used in the setup
mode for various functions

VOLUME Control
adjusts the listening
level for both chan­nels

Standby Power
On Indicator

TONE BYPASS with
indicator, when activated
the audio signal totally
bypasses the Tone Con­trol Circuitry. It is also
used in the setup mode
for various functions

Connection for low
impedance dy­namic headphones
with 1/4” (0.64cm)
stereo phone type
plug, for private
listening

10

REC MONITOR
Push-button with
indicator, allows
listening to the
playback of REC/
TAPE Source
while the record­ing is in process

MONO with indicator,
combines the Left and Right
Channel signals for Mono­phonic Sound. It is also used
in the setup mode for various
functions

Activates the
different Mute
Modes

SETUP Mode Push-but­ton with indicator, allows
the changing of the
default settings for Inputs,
Levels, Special Functions
and the Display

STANDBY/ON
Push-button switch
es the C220 ON or
OFF (Standby) and
resets the micropro­cessors

INPUT Control selects
the desired audio signals
for listening and record­ing. It is also used in the
setup mode for various
functions.

-

How to Operate the Setup Modes

Setup

Your McIntosh C220 has been factory configured for
default operating settings that will allow immediate enjoy­ment of superb audio without the need for further adjust­ments. If you wish to make changes to the factory default
settings, a Setup Feature is provided to customize the oper­ating settings using the Front Panel Alphanumeric Display.

1. Press the STANDBY/ON Push-button to switch On the
C220.

Note: The Red LED above the STANDBY/ON Push-button

lights to indicate the C220 is in Standby mode.

2. Press the C220 Front Panel SETUP Push-button. The
LED above the SETUP Push-button will illuminate
and the Front Panel Display will indicate C220 V1.00
or higher. Refer to figure 1.

Note: The Front Panel Display will indicate C220

V1.00 or higher the first time, after that it will dis­play whatever Setup Mode was last accessed.

Figure 1

3. Press Menu  (MONO) Push-button and notice that
with each press of the push-button, the Setup Mode
goes forwards through ten different possible adjust­ment selections and one informational display.

4. Press Menu  (TONE BYPASS) Push-button and no­tice that with each press of the push-button, the Setup
Mode goes backwards through the possible adjustment
selections and one informational display.

5. To exit from a specific Setup Mode, press the SETUP
Push-button a second time. The LED above the SET­UP Push-button will extinguish and the Front Panel
Display will revert back to its normal display. Refer to
figure 2.

Default Settings

Function Name Setting Page No.

REMOTE NORMal

TUBE LED ON

AUTOTONE ON

ACCessory < C > MAIN

TRIGger TUNER > --

DISPLAY 7

INPut TUNer > TUNer

TRIM 0.0 TUNner

BALANCE 00

C220 V_._ _

13

13

13

13

13

12

12

11

16

11

Firmware Version

The C220 functionality is controlled by internal software
that is know as Firmware. The Version of the Firmware
in the C220 can be identified at any time by utilizing the
Setup Mode.

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu  or Menu  Push-button until C220
V1.00 or higher appears. Refer to figure 1.

3. The number after the character “V” is the Firmware
number.

4. Press the SETUP Push-button to exit the Setup Mode.

Balance

For information on using the Balance adjustment, refer to
“How to Operate, Balance (Trim Function)” on page 16.

Figure 2

Default Settings

The Default Settings Chart at the top of the page (right
column) indicate the Function Name, default Settings and
the page number for instructions on how to change it.

Trim Level Adjustment

Source Components can have slightly different volume
levels resulting in the need to readjust the C220 Volume
Control when switching between different sources. The
C220 allows the adjustment of levels for each of the Source
Inputs for the same relative volume. The Tuner and CD
Inputs are used in the following example.

Note: The range of adjustment is ± 6dB. The Tape/Record

Output Levels are unaffected by any changes in the
Level Trim Settings. The Trim adjustments made are
retained in permanent memory. They can be changed
by performing a new Trim Procedure. The Tuner Input
Volume Level can serve as a reference or choose an­other source frequently listened to. The reference Input
Source should be set to a Trim Level of 00.

11

1. Rotate the INPUT Control to select the Tuner Input
and adjust the VOLUME Control to the desired listen­ing level.

2. Press the SETUP Push-button to access the Setup
Mode.

3. Press the Menu  or Menu  Push-button until
“TRIM 0.0 TUN” appears on the Front Panel Alpha­numeric Display. Refer to figure 3

Note: If necessary, rotate the INPUT Control for “TUN”

and press the SELECT  or  Push-buttons for
”0.0”.

Figure 3

4. Rotate the INPUT Control until the display indicates
“TRIM 0.0 CD”.

5. Press the SELECT  or  Push-button or the Remote

Control Trim  or  Push-buttons until Listening
Volume Level of the CD Input is the same as the Tuner
Volume Level. Figure 9 indicates a -2.5dB decrease in
the CD Level. Refer to figure 4.

Figure 4

Input Source Settings

Default Title New Title Trim Trigger

TUNER

CD2

CD

DVD

SAT

VCR

TAPE

PHONO

Saver Function will activate, removing power from
the two Phono Tubes.

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu  or Menu  Push-button until “INP
___ > ___” appears on the Front Panel Alphanumeric
Display.

3. Rotate the INPUT Control until the Front Panel Alpha­numeric Display indicates “INP SAT > SAT”. Refer to
figure 5.

6. Rotate the INPUT Control until the name of the next
Input to be adjusted is displayed.

7. Repeat steps 5 and 6 until all the Inputs with sources
connected to the C220 have the same relative volume
levels when switching between them. Record any
changes made to the various inputs from the default
settings in the “Input Source Settings Chart” at the
top of the page (right column).

8. Press the SETUP Push-button to exit the Setup Mode.

Re-Title Inputs

The C220 provides the ability to change the default Input
Titles to match the components in your system. In the fol­lowing example the SAT Input will be renamed and appear
as TV on the Front Panel Alphanumeric Display.

Notes: 1. New Input Titles are available for all high level

Inputs. They include OFF, TV, LV, TAPE 2 (TP2),
and VCR2. If OFF is selected for a given Input, that
Input will no longer appear when using the INPUT
Control, nor is it accessible with the Remote Control.

2. The Phono Input is designed for connection of a
turntable only and thus the title is not changeable.
However if the “OFF Title” is selected, the Tube

Figure 5

4. Press the SELECT  or  Push-button until the Front

Panel Alphanumeric Display indicates “INP SAT >
TV”. Refer to figure 6.

Figure 6

5. Press the SETUP Push-button to exit the Setup Mode.

Display Brightness

The Front Panel Alphanumeric DISPLAY Brightness may
be varied from a setting of 1 (Dim) to 7 (Bright). Follow
the steps below for reducing the Display Brightness.

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu  or Menu  Push-button until the

word DISPLAY 7 appears.

12

Setup, con’t

3. Press the TRIM LEVEL Down

 Push-button until the

Front Panel Alphanumeric Display indicates “Display
3”.

4. Press the SETUP Push-button to exit the Setup Mode.

Power Control Triggers

The SPKR1(A) and SPKR2(B) Power Control Outputs are
reassignable to activate only when a given Input is select­ed. In the following example, the Power Control SPKR1(A)
Jack will be set to function as TRIGGER A for the DVD
Input.

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu Menu  or Menu  Push-button until
“TRIG TUN > - - ” appears on the Front Panel Alpha­numeric Display.

3. Rotate the INPUT Control until the display indicates
“TRIG DVD > - - ”. Refer to figure 7.

Figure 7

4. Press the SELECT  or  Push-button until the dis­play indicates “TRIG DVD > A ”. Refer to figure 8.

Auto Tone

The C220 remembers for each input if the TONE BYPASS
has been activated. To de-activate the AUTOTONE fea­ture, perform the following:

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu  or Menu  Push-button until
“AUTOTONE ON” appears on the Front Panel Alpha­numeric Display.

3. Press the SELECT  or  Push-button until the dis­play indicates “AUTOTONE OFF”.

4. Press the SETUP Push-button to exit the Setup Mode.

Tube LED

To swich Off the Tube LED green illumination perform the
following:

1. Press the SETUP Push-button to access the Setup

Mode.

2. Press the Menu  or Menu  Push-button until

“TUBE LED ON” appears on the Front Panel Alphanu­meric Display.

3. Press the SELECT  or  Push-button until the dis-

play indicates “TUBE LED OFF”.

4. Press the SETUP Push-button to exit the Setup Mode.

Figure 8

5. Press the SETUP Push-button to exit the Setup Mode.

Accessory Power Control

The ACC (C) Power Control Output is reassignable from
going ON/OFF with the C220 (Main), to be controlled by
the Remote Control ACC ON/OFF Push-buttons. To reas­sign it perform the following:

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu  or Menu  Push-button until “ACC
< C > MAIN” appears on the Front Panel Alphanu­meric Display.

3. Press the SELECT  or  Push-button until the dis­play indicates “ACC< C > ON”. Refer to figure 9.

Figure 9

4. Press the SETUP Push-button to exit the Setup Mode.

Remote Control Selection

The C220 will respond to Remote Control Codes NORMal
(default) or ALTernate. The ALTernate Codes are for use
when the C220 is part of a system with another McIntosh
Control Center or Preamplifier. This will prevent the Re­mote Control from affecting the operation of both units at
the same time.

Note: If the ALT Remote Control Code is selected, the C220

will not respond using the supplied McIntosh Remote
Control. See your McIntosh Dealer for additional
information.

1. Press the SETUP Push-button to access the Setup
Mode.

2. Press the Menu  or Menu  Push-button until “RE­MOTE NORM” appears on the Front Panel Alphanu­meric Display.

3. Press the SELECT  or  Push-button Push-button
until the display indicates “REMOTE ALT”.

4. Press the SETUP Push-button to exit the Setup Mode.

13

LED illuminates during the time a
remote command is sent to the C220

Press to Power the
C220 ON or OFF

Remote Control Push-Buttons

Press MODE to switch between
Stereo and Mono Modes

Turns AC Power ON or OFF to
certain McIntosh Components when
connected via the Data Port

Selects Functions for McIntosh
Home Controller and as a “shift”
key when used with the AM or FM
push-buttons to select Output (Spkr)
1 or 2

Switches OFF the
entire C220 System

Use to select tuner presets, disc
tracks or any numbered operation

Selects Output 1, AM Tuner Operat
ing Functions and Disc Selection on
certain McIntosh Disc Players

Press TRIM and then the LEVEL
Push-buttons to select and adjust
various functions

Mutes the audio

Press to Power ON
the C220

Press to Power OFF
the C220

Selects Output 2, FM Tuner Operat
ing Functions and Track Selection
on certain McIntosh CD Players

-

Press to REVIEW Tuner Station
Presets and select certain functions
on a variety of McIntosh Compo­nents

Adjusts the volume level up or down

Selects On Screen Functions on a
variety of McIntosh Components

-

Selects a Disc Player, Music Server
or Tape Recorder Function and also
performs various functions on a
variety of McIntosh Components

Selects one of the eight
available Audio Sources

Notes: Push-buttons whose function is not identified above are for use with other McIntosh Products. The Remote Control

shipped with your C220 may differ from the illustration above; however, the functionality is the same.

Selects the FF (Fast Forward) or
REWind Mode on Disc Player,
Music Server or Tape Recorder;
tunes Up or Down the AM/FM
Dial

14

How to use the Remote Control

How to use the Remote Control

The supplied Remote Control is capable of directly con­trolling the functions of contemporary McIntosh Source
Components connected to the C220 Tube Preamplifier.
Earlier McIntosh source components and other brand
source components can be controlled by the C220 Remote
Control with the addition of a McIntosh Remote Control
Translator (RCT).

Note: Your McIntosh Dealer can assist you with the instal-

lation and operation of the Remote Control Translator
(RCT).

Input Source Selection

Press the appropriate Source Push-button to select the
desired program source.

Mute

Press the MUTE Push-button to mute audio. The Record
Signals present at the TAPE OUTPUT Jack are not affect

­ed by the MUTE function. The C220 Front Panel Alphanu­meric Display will indicate the word MUTE. Press MUTE
a second time to unmute audio.

Mode

Press the MODE Push-button to switch from Stereo to
Mono for Monophonic listening.

Disc, Server and Tape Functions

Use these push-buttons to operate a DVD Player, CD
Player, CD Changer, Music Server or Tape Recorder.

Numbered Push-buttons

Press Push-buttons 0 through 9 to access tuner station pre
sets, tracks on discs or selections on a Music Server.

Disc and Track

Use the DISC and TRACK Push-buttons when a Disc
Player or Music Server is being used.

Tuner Push-buttons

Press the AM or FM Push-button to select the desired
broadcast band. Press and release the CHANnel Up

 or
Down Push-button to move from station to station. Press
and hold a CHANnel Up or Down Push-button to
move continuously from station to station. Press the +10
Push-button to start the automatic brief audition of each of
the presets stored in the tuner memory. Press +10 Push­button a second time to stop on a station preset.

Volume

Press the Up

 or Down VOLUME Push-button to raise

or lower the listening volume level.

Note: The Record Signals present at TAPE OUTPUTS are not

affected by volume changes.

Pause

Press Pause Pushbutton to perform various functions
on a variety of McIntosh Components. It will also pause
the playing of a disc or tape player. The Pause Push-but­ton will also allow for quick exiting from the active menu
when in the setup mode. The Pause Push-button is also
used as an Enter Push-button with some McIntosh compo­nents.

Trim

Press the TRIM Push-button until the word “BALANCE”
appears on the Alphanumeric display, then press the
LEVEL Up

 Push-button to emphasize the Left Channel

or Down Push-button to emphasize the Right Channel.

Press the TRIM Push-button until the word “TRIM _

_ _ _ _” appears on the Alphanumeric display, then press
the LEVEL Up or Down Push-button to match the
volume level of the previously selected Input.

Notes: 1. Refer to “Balance Control (Trim Function)” on

page 16 for additional information.

2. Refer to “Trim Level Adjustment” on page 11 for
additional information.

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.

Amplifier Selection

Press the 2nd Push-button followed by the OUTPUT 1
or 2 Push-buttons either separately or together, to control
the rear panel OUTPUTS 1, 2 which can feed signals to a
Power Amplifier or other accessory component.

15

How to Operate the C220

Power On

The Red LED above the STANDBY/ON Push-button lights
to indicate the C220 is in Standby mode. To Switch ON the
C220, press the STANDBY/ON Push-button on the Front
Panel or the Power Push-button on the Remote Control.
The title TUBE WARMUP will appear on the Front Panel
Alphanumeric Display after Turn-On, with the Audio Out­puts muted. Refer to figures 10, 11, 12 and 18.

Note: The amount of time the Front Panel Alphanumeric Dis-

play indicates TUBE WARMUP is dependant upon the
temperature of the C220 Tubes.

Figure 10

Figure 11

Source Selection

Select the desired source using the INPUT Control or
Remote Control.

meric Display, then press the TRIM LEVEL Up

 or

Down Push-button to emphasize the Left Channel or the
Right Channel. Refer to figure 13. The Front Panel Dis-

Figure 13

play indicates the balance changes in steps from 0 to 107.
After approximately 3 seconds the Alphanumeric Display
returns to the indicate the Source Selection and Volume
Level. When the balance is set to favor either left or right
channel, the volume number indicated will have a “< or >”
sysmbol on either side of the number. Refer to figure 14.

Figure 14

To verify the balance setting without changing it, just press
the TRIM Push-button once to select Balance.

Note: The Balance may also be adjusted in the setup mode,

refer to pages 11-13.

Volume Control

Rotate the Front Panel VOLUME Control or use the
VOLUME Up

 or Down Push-buttons on the Remote

Control for the desired listening level.

Balance Control (Trim Function)

Listening balance varies with different program sources,
room acoustics and listening positions relative to the
Loudspeakers. Use the Balance Trim Function as needed
to achieve approximately equal listening volume levels in
each Loudspeaker. To adjust the Balance, press the Remote
Control TRIM Push-button once. The word and number
“BALANCE 00” appears on the Front Panel Alphanu

-

Bass and Treble Controls

Adjust the BASS and TREBLE controls to suit your
listening preferences. The Bass or Treble intensity can
be increased with clockwise rotation and decreased with
counterclockwise rotation.

Tone Bypass

Press the TONE BYPASS Push-button to totally Bypass
the Tone Control Circuitry, providing a flat frequency
response. If the AUTOTONE circuit is set to the On posi

­tion in Setup Mode, the C220 will remember for each input
whether the Tone Bypass is active.

16

Figure 12

How to Operate the C220

Mono

Press the Front Panel MONO Push-button or the MODE
Push-button on the Remote Control to combine left and
right stereo signals to a Monophonic Signal. The Front
Panel LED will illuninate indicating the MONO Mode is
active. The C220 automatically stores into memory for
each Input, the Selection of the Stereo or Mono Mode.

Note: The signals at the TAPE OUT Jacks are not affected.

Record Monitor

Press the REC MONITOR Push-button to hear the TAPE/
REC Playback Signal during the recording process.

Setup

Pressing the SETUP Push-button activates the Setup Mode
of the C220 and allows customizing various operating
functions. Refer to page 14 for additional information.

Mute

Press the MUTE Push-button, on the C220 Front Panel
or on the Remote Control, to Mute the Audio at the OUT

­PUTS Connectors and HEADPHONES Output Jack. The
Front Panel Alphanumeric Display will indicate the Input
Source Name followed by the word MUTE in place of the
actual volume setting. Refer to figure 15.

Pressing the Mute Push-button a second time or adjust­ing the volume control (either the Front Panel or Remote
Control) will un-mute the C220.

Figure 15

If the Front Panel MUTE Push-button is pressed for at
least 3 seconds, the C220 will mute the OUTPUTS con­nectors, yet listening with headphones will continue until
the Mute Push-button is pressed again for 3 seconds. The
Front Panel Alphanumeric Display will indicate the Input
Source Name, Volume Setting and a Dot. Refer to figures
16 and 17.

Figure 16

Figure 17

Output 1 and 2

Press the HOME Push-button
followed by the SPKR 1 or 2
Push-buttons to send audio to
separate Power Amplifiers con­nected to the rear panel OUT­PUTS 1 or 2 Jacks. It also acti­vates the POWER CONTROL
SPKR 1 & SPKR 2 Jacks on the
rear panel of the C220. To stop
the Audio and Power Control
Signals from going to the sepa­rate Power Amplifiers, press the
HOME Push-button followed by
the SPKR 1 or 2 Push-buttons.

Headphones Jack

Connect a pair of dynamic
headphones with a 1/4” (0.64cm)
stereo phone type plug to the
Headphones Jack for private
listening.

How To Make A Tape Record

-

ing

1. Select the signal you wish to
record.

2. Adjust the record level using
the recorder volume control
and proceed with the record­ing process.

Figure 18

3. To listen to the playback of the
program source just recorded, press the RECord MONI­TOR Push-button.

Note: The C220 TAPE OUTPUTS are not affected by the

VOLUME or BALANCE controls.

Reset of Microprocessors

In the unlikely event the controls of the C220 stop func­tioning, the microprocessors can be reset by performing
the following:

1. Press and hold in the STANDBY/ON Push-button for
approximately five seconds.

2. When the C220 cycles On then Off, release the
STANDBY/ON Push-button.

3. When the STANDBY/ON LED is illuminated press
the STANDBY/ON Push-button, the C220 will resume
normal operation.

Note: This can be performed with the C220 On or in the

Standby Mode.

17

Specifications

Specifications

Frequency Response

+0, -0.5dB from 20Hz to 20,000Hz

Total Harmonic Distortion

0.08% from 20Hz to 20,000Hz

Main Output

2.5V for rated input

Maximum Voltage Output

8V RMS Unbalanced, 16V RMS Balanced

Sensitivity (for rated output)

High Level, 450mV unbalanced, 900mV balanced
Phono, 4.5mV

Signal To Noise Ratio (A-Weighted)

High Level, 90dB below rated output
Phono, 80dB below 10mV input

Input Impedance

High Level, 22K ohms
Phono, 47K ohms; 65pF

Maximum Input Signal

High Level, 5V Unbalanced, 10V Balanced
Phono, 50mV (@ 1,000Hz)

Power Requirements

100 Volts, 50/60Hz at 75 watts
110 Volts, 50/60Hz at 75 watts
120 Volts, 50/60Hz at 75 watts
220 Volts, 50/60Hz at 75 watts
230 Volts, 50/60Hz at 75 watts
240 Volts, 50/60Hz at 75 watts

Note: Refer to the rear panel of the C220 for the correct volt-

age.

Overall Dimensions

Width is 17-1/2 inches (44.45cm)
Height is 6 inches (15.24cm) including feet
Depth is 18 inches (45.72cm) including the Front Panel,
Knobs and Cables

Weight

21.1 pounds (9.59 kg) net, 37.5 pounds (17.05 kg) in ship
ping carton

Shipping Carton Dimensions

Width is 26-1/2 inches (67.3cm)
Depth is 24-1/4 inches (62.2cm)
Height is 11-3/4 inches (29.9cm)

-

Output Impedance

250 ohms

Voltage Gain

High Level to Tape Output: 0dB
High Level to Main Output: 15dB
Phono to Main Output: 55dB

Headphone Output Impedance

16 ohms to 250 ohms

Tube Compliment

Phono Circuitry: 2 - 12AX7A
High Level Circuitry: 2 - 12AX7A

18

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 at­tached 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
Laboratory. Refer to page 4. Please see the Part List for the
correct part numbers.

Quantity Part Number Description
1 033838 Shipping carton only
4 033837 End cap

1 033836 Inside carton only
1 033725 Top pad
1 034301 Bottom pad
1 034037 Inner carton pad

4 017937 Plastic foot
4 400159 #10-32 x 3/4” screw
4 404080 #10-7/16” Flat washer

19

McIntosh Laboratory, Inc.

2 Chambers Street

Binghamton, NY 13903

The continuous improvement of its products is the
policy of McIntosh Laboratory Incorporated who
reserve the right to improve design without notice.
Printed in the U.S.A.

McIntosh Part No. 04098400