McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
MA8900
Integrated Amplifier
Owner’s Manual
Important Safety Information is supplied in a separate document “Important Additional Operation Information Guide”
Thank You
Your decision to own this McIntosh MA8900 Integrated Amplifier 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: 607-723-3512
Fax: 607-724-0549
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. |
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2 Chambers Street |
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Binghamton, New York 13903 |
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Phone: 607-723-3515 |
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Fax: 607-723-1917 |
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Table of Contents |
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Safety Instructions.............................................................. |
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2 |
(Separate Sheet) ............................ |
Important Additional |
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Operation Information Guide |
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Thank You and Please Take a Moment ............................... |
2 |
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Technical Assistance and Customer Service....................... |
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Table of Contents ................................................................. |
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General Information ............................................................ |
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Connector and Cable Information....................................... |
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Introduction ......................................................................... |
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Performance Features.......................................................... |
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Dimensions .......................................................................... |
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Installation ........................................................................... |
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Connections: |
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Rear Panel Connections....................................................... |
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(Separate Sheet) ........................................................... |
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Mc1A |
Connecting Components ..................................................... |
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Connection Diagrams (Separate Sheet)................. |
Mc2A/2B |
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Passthru Connections .......................................................... |
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Connecting for Bi-Amplification ...................................... |
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Connecting Loudspeakers ............................................ |
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Remote Control and Front Panel: |
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Remote Control Push-buttons ........................................... |
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How to use the Remote Control......................................... |
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Copyright 2017 © by McIntosh Laboratory, Inc.
Front Panel Displays, Controls, |
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Push-buttons and Jack ....................................................... |
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Setup Mode: |
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How to Operate the Setup Mode ....................................... |
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Setup Functions: |
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Default Settings ......................................................... |
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Firmware Version ...................................................... |
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Source Input Renaming ........................................ |
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Output Settings .......................................................... |
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Power Control Triggers 1 and 2................................. |
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Data Ports................................................................... |
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Passthru...................................................................... |
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Comm Port Baud Rate............................................... |
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Remote Control Codes............................................... |
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IR Sensor.................................................................... |
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Power Mode ............................................................... |
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Factory Reset ............................................................. |
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Microprocessor Reset ........................................................ |
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Operation: |
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How to Operate the MA8900 ....................................... |
24-31 |
Trim Functions: |
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Balance....................................................................... |
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Equalizer Mode.......................................................... |
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Trim Level.................................................................. |
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Phono Adjustments .................................................... |
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Mono/Stereo Mode .................................................... |
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Meter Backlight ......................................................... |
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Display Brightness..................................................... |
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Headphone HXD........................................................ |
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Equalizer, Trim, Mute, Headphone Jack.................... |
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Power Output Meters, Power Guard .......................... |
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How to Make a Recording.......................................... |
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Using a Separate Power Amplifier............................. |
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Using Output 2 and Passthru...................................... |
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Equalizer Controls...................................................... |
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Optical and Coaxial Digital Inputs ............................ |
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USB Input Operation with a Computer...................... |
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Resetting the MA8900 to default settings.................. |
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Photo ......................................................................... |
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Specifications....................................................... |
33-34 |
Packing Instructions ................................................. |
35 |
2
General Information, Connector and Cable Information
General Information
1.For additional connection information, refer to the owner’s manual(s) for any component(s) connected to the MA8900.
2.Apply AC Power to the MA8900 and other McIntosh Component(s) only after all the system components are connected together. Failure to do so may cause a malfunction of system operations as the Microprocessor’s Circuitry inside the components is active when AC Power is applied.
3.The MA8900 includes an Auto Off Power Save Feature and the default setting is enabled. For additional information including how to disable it, refer to page 22.
4.When Power Amplifier Protection Circuitry of the MA8900 has activated, the Front Panel Power Guard LEDs are illuminated continuously and the sound will be muted.
5.When the Power Transformer has overheated due to improper ventilation and/or high ambient operating temperature, AC Power is removed from the MA8900. Normal operation will resume when the operating temperature is in a safe range again.
6.For the best performance and safety, it is important to always match the impedance of the Loudspeaker to the Power Amplifier connections. Refer to pages 10 thru 12.
Note: The impedance of a Loudspeaker actually var ies as the Loudspeaker reproduces different frequencies. As a result, the nominal impedance rating of the Loudspeaker (usually measured at a midrange frequency) might not always agree with the impedance of the Loudspeaker at low frequencies where the greatest amount of power is required. Contact the Loudspeaker Manufac turer for additional information about the actual impedance of the Loudspeaker before connecting
it to the McIntosh MA8900.
7.The MA8900 Remote Control is capable of operating other components. For additional information go to www.mcintoshlabs.com.
8.The IR Input, with a 1/8 inch mini phone jack, is configured for non-McIntosh IR sensors such as a Xantech Model DL85K Kit. Use a Connection Block such as a Xantech Model ZC21 when two or more IR sensors need to be connected to the MA8900. The signal from a connected External IR Sensor will have priority over the signal from the Front Panel IR Sensor.
9.When discarding the unit, comply with local rules
or regulations. Batteries should never be thrown away or incinerated but disposed of in accordance with the local regulations concerning battery disposal.
10.For additional information on the
MA8900 and other McIntosh Products please visit the McIntosh Web Site at www.mcintoshlabs.com.
Connector and Cable Information
XLR Connectors
Below is the Pin configuration for the XLR Balanced Input Connectors on the MA8900. Refer to the diagram for connection:
PIN 1: Shield/Ground |
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PIN 2: + Output |
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PIN 3: - Output |
PIN 1 PIN 2 |
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Power Control and Trigger Connectors
The Power Control Trigger Output Jacks send and Passthru Input Jack receives Power
On/Off Signals (+12 volt/0 volt) when connected to other McIntosh Components. An additional connec-
tion is for controlling the illumina- |
Meter |
Illumination |
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tion of the Power Output Meters |
Control Ground |
on McIntosh Power Amplifiers. A 3.5mm stereo mini phone plug is used for connection to the Power Control, Trigger and Passthru Outputs.
Data Port Connectors
The Data Out Ports send Remote Control Signals to Source Components. A 3.5mm stereo mini phone plug is used for connection.
IR IN Port Connectors
The IR IN Port also uses a 3.5mm stereo mini phone plug and allows the connection of other brand IR Receivers to the MA8900.
Data
Signal
N/C
Data
Ground
IR Data
Control
N/C
Ground 
RS232-C Data Port Cable
The RS232 Data Cable is a 3.5mm stereo mini phone plug to a sub miniature DB 9 connector:
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DB9 |
Data In |
PIN 1 |
(male connector) |
(DB9-pin2) |
PIN 5 |
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Data Out |
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(DB9-pin3) |
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Ground |
PIN 6 |
PIN 9 |
(DB9-pin5) |
Output Terminal Connector |
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When cables with spade lugs are used |
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for Loudspeaker Connection, the spade |
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lugs need an opening of at least 3/10 inch |
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(7.6mm) |
3/10 of an inch |
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(7.6millimeters) |
McIntosh Plug-In Jumper Connector
The MA8900 utilizes two phono style Plug-In Jumpers to connect the Preamplifier Output to 
the Power Amplifier Input. 
Note: The Jumper Connector is available from the McIntosh Parts Department:
McIntosh Jumper Connector Part No. 117781
3
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Introduction and Performance Features |
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Introduction |
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Now you can take advantage of traditional McIntosh |
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Electromagnetic Switches on all inputs and operating |
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standards of excellence in the MA8900 Integrated |
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functions for reliable, noiseless, distortion free switch- |
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• Power Control Output and Trigger Assignment |
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Amplifier. The Power Amplifier section of the |
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ing. There is a Balanced Input for connection of a |
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A Power Control connection for convenient Turn-On |
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MA8900, with a power output of 200 watts per chan- |
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source component. |
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of McIntosh Power Amplifiers, Source Components |
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nel, will drive a pair of quality Loudspeakers to a high |
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• Digital Audio Inputs |
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and Accessories is included. The Power Control Trig- |
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level of performance. |
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ger Ouputs may be assigned to activate when a given |
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The flexible Preamplifier section provides connec- |
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The Digital Inputs decode PCM and DSD Signals |
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Input/Output is selected. |
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tions for various input sources and may also be used to |
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from external sources. Coaxial and Optical Inputs |
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drive an external Power Amplifier(s). |
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process Digital Signals up to 192kHz with 24-Bit |
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• PassThru Mode |
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The MA8900 reproduction is sonically transparent |
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resolution. The Digital MCT Input Circuitry directly |
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The Automatic PassThru Mode allows the MA8900 |
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and absolutely accurate. The McIntosh Sound is “The |
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decodes SACD/CD signals from an external Trans- |
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to become part of a Multichannel Sound System for |
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Sound of the Music Itself.” |
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port component. The USB Input for streaming audio |
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DVD-Audio, SACD and Home Theater Movies. |
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Performance Features |
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processes Digital Signals up to 384kHz with 32-Bit |
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resolution, decodes up to DSD256 Digital Signals and |
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• Remote Control |
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• Power Output with Patented Autoformer |
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DXD 24-Bit with a sampling rate up to 384kHz. |
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The Data Ports together with the supplied Remote |
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The MA8900 consists of a 200 watts per channel |
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• Moving Coil and Moving Magnet Phono Inputs |
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Control provide control of McIntosh Source Compo- |
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Power Amplifier with less than 0.005% distortion. |
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nents connected to the MA8900. |
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The MA8900 has two precision Phono Preamplifier |
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The McIntosh designed and manufactured Autoformer |
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Circuits for Moving Coil and Moving Magnet Phono |
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• Special Power Supply |
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allows connection of 2, 4 or 8 ohm Loudspeakers. The |
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Power Amplifier uses ThermalTrak1 Output Transis- |
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Cartridges. Both circuits use the latest designs to |
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The large Power Transformer, multiple filter capaci- |
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tors for lower distortion and cool operation. |
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provide the lowest possible noise, distortion and flat |
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tors with 120 Joules of Energy Storage and regulated |
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frequency response. The MC Phono Cartridge Input |
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Power Supply, ensures stable noise free operation even |
• Power Guard |
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has selectable loading. |
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though the power line varies. |
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The patented McIntosh Power Guard circuit prevents |
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• Five Band Equalizer |
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amplifier clipping and protects your valuable Loud- |
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• McIntosh Custom Binding Posts |
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speakers. |
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The Equalizer Controls provide ±12dB at center |
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McIntosh Patented gold plated output terminals deliver |
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frequencies of 30, 125, 500, 2,000 and 10,000Hz. |
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high current output. They accept large diameter wire |
• Sentry Monitor and Thermal Protection |
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There is also an Equalizer Bypass Mode to remove the |
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and spade lugs. Banana plugs may also be used only in |
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McIntosh Sentry Monitor power output stage protec- |
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Equalizer from the Signal Path of any selected input. |
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the United States and Canada. |
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tion circuits ensure the MA8900 will have a long and |
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• Multifunction Display and Power Meters |
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trouble free operating life. Built-in Thermal Protection |
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• Glass Front Panel and Super Mirror Chassis |
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Circuits guard against overheating. |
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The Front Panel Display indicates source selection, |
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Finish |
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• Electronic Switching and Balanced Connections |
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volume levels and setup functions. The Illuminated |
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The famous McIntosh Illuminated Glass Front Panel |
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Power Output Meters are peak responding, and indi- |
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uses long life Light Emitting Diodes (LEDs) and the |
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The Preamplifier uses Logic Circuits Controlled |
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cate the power output of the amplifier. |
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Stainless Steel Chassis with Super Mirror Finish |
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1 ThermalTrak™ and ON Semiconductor are trademarks of Semi |
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ensures the pristine beauty of the MA8900 will be |
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conductor Components Industries, LLC |
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retained for many years. |
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Dimensions
Dimensions
The following dimensions can assist in determining the best location for your MA8900. There is additional information on the next page pertaining to installing the MA8900 into cabinets.
Front View of the MA8900
17-1/2"
44.5cm
USB 35%
DSD256
7 -1/8" 7 -5/8"
18.1cm
19.4cm
Side View of the MA8900
18-3/4" |
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47.6cm |
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16-1/2" |
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41.9cm |
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3/16" |
6-1/4" |
15.9cm |
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0.5cm |
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Rear View of the MA8900
16-1/16" |
29/32" |
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1.8cm |
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40.8cm |
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13" |
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33cm |
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1-5/8" |
1" |
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6" |
4.1cm |
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2.5cm |
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15.2cm |
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12-3/16"
31cm
5
Installation
Installation
The MA8900 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 MA8900 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 MA8900 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 MA8900. Cool operation ensures the longest possible operating life for any electronic instrument. Do not install the MA8900 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 2 inches (5.1cm) on each side of the Integrated Amplifier, so that airflow is not obstructed. Allow 20 inches (50.8cm) depth behind the front panel. Allow 1-7/6 inch (3.66cm) 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.
17-1/16"
43.34cm
MA8900 Front Panel |
6 -5/8" |
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Custom Cabinet Cutout |
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16.83cm |
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USB |
35% |
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DSD256 |
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6" |
Cutout Opening for Custom Mounting |
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15.2cm |
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Cabinet |
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Front |
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Panel |
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Opening |
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for Ventilation |
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MA8900 Side View
in Custom Cabinet
Cutout Opening for Ventilation |
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1" |
Support |
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Shelf |
Chassis |
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2.5cm |
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Spacers |
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2" |
14-1/2" |
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MA8900 Bottom View |
36.8cm |
15-1/16" |
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5.1cm |
Cutout |
13" |
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in Custom Cabinet |
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Opening |
33cm |
38.3cm |
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for |
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Ventilation |
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Note: Center the cutout Horizontally |
13-5/16" |
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on the unit. For purposes of |
33.8cm |
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clarity, the above illustration |
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is not drawn to scale. |
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6
MA8900 Rear Panel Connections
Rear Panel Connections
The identification of Rear Panel Connections for the MA8900 Integrated Amplifier is located on a separate folded sheet contained in the Owner’s Manual Packet. Refer to separate sheet “Mc1A” for the Rear Panel Connections.
MA8900 Integrated Amplifer
7
Connecting Components
Connecting Components
The MA8900 has the ability to automatically switch power On/Off to McIntosh Source Components via the Power Control (Trigger) connections. The Data Port Connections allow for the remote operation of basic functions using the MA8900 Remote Control.
With an external sensor connected to the MA8900, remote control operation of the system is possible from another room and/or when the MA8900 is located in a cabinet with the doors closed.
The connection instructions below, together with the MA8900 Input and Output Connection Diagrams located on the separate folded sheet “Mc2A/2B”, are 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 3.
Power Control Connections:
1.Connect a Control Cable from the MA8900 POWER CONTROL MAIN Jack to the Power Control In on the Turntable.
2.Connect a Control Cable from the McIntosh Turntable Power Control Out Jack to the Digital Audio Player Trigger In Jack.
3.Connect a Control Cable from the Digital Audio Player Trigger Out Jack to the SACD/CD Transport Power Control In Jack.
4.Connect a Control Cable from the SACD/CD Transport Power Control Out Jack to the AM/FM Tuner Power Control In Jack.
5.Connect a Control Cable from the AM/FM Tuner Power Control Out Jack to the Media Server PWR CTRL (Power Control) In Jack.
6.Optionally connect a Control Cable from the MA8900 POWER CONTROL TRIG (Trigger) 2 Jack to the Power Amplifier (Secondary Room) Power Control In Jack.
7.Connect any additional McIntosh Components in a
similar manner, as outlined in steps 1 thru 4.
Data Control Connections:
8.Connect a Control Cable from the MA8900 DATA PORT Jack 3 to the SACD/CD Player Data In Jack.
9.Connect a Control Cable from the MA8900 DATA PORT Jack 2 to the AM/FM Tuner Data In Jack.
10.Connect a Control Cable from the MA8900 Jack 1 to the Media Server Data In Jack.
11.Connect any additional McIntosh Components in a similar manner, as outlined in steps 8 thru 10.
Sensor Connection:
12.Optionally, connect the cable with stereo mini plug coming from the compatible External Sensor
to the EXT CTRL (External Control) IR IN Jack on the MA8900. Refer to page 3 “General Information, note 8” for additional information.
Audio Connections:
13.Connect Balanced Cables from the MA8900 BALANCED INPUT L & R Connectors to the Media Server Audio Output Balanced Connectors.
14.Connect Audio Cables from the MA8900 Number 1 UNBALANCED Jacks to the AM/FM Tuner UNBAL Output Jacks.
15.Connect the Audio Cables coming from the Turntable to the MA8900 MC (for a Moving Coil Cartridge) or MM (for a Moving Magnet Cartridge)
INPUT Jacks.
16.Optionally, connect Audio Cables from the MA8900 OUTPUT 2 Jacks to the Power Amplifier
(Secondary) Input Jacks.
17. Connect any additional Components in a similar manner, as outlined in steps 13 thru 16.
Optional Digital Audio Connections:
18.Connect an Optical Cable from the MA8900 OPTICAL 1 Digital Audio Input Connector to the Digital Audio Out Optical Connector on the Digital Audio Player.
19.Using the “DIN Cable-Twisted Pair” cable (supplied with a MCT Transport), connect the cable from the MA8900 MCT DIGITAL AUDIO IN-
PUT Connector to the SACD/CD Transport DIN Output Connector.
Optional USB Connection:
20.Connect a USB cable with (Type A to Type B) connectors from the MA8900 USB D/A Digital
Audio Input to an available USB connector.
Ground Connections:
21.Connect the Ground Cable coming from the Turntable to the MA8900 GND Binding Post.
Notes: 1. If the MA8900 is part of a Home Theater System, proceed to “PassThru” connection on page 9.
2.When the MA8900 will used together with a separate Power Amplifier for Bi Amplification of a Loudspeaker System, proceed page 10.
8
Passthru Connections
Passthru Connections
The MA8900 can be part of a Multichannel Sound System for BLU-RAY-Audio, DVD-Audio and Home Theater Movies. The Right and Left Front Channels from an Audio/Video Control Center can “Passthru” the MA8900. In the following example the UNBALANCED 6 Input will become the “Passthru” input:
1.Connect Audio Cables from the A/V Processor FL (Front Left) and FR (Front Right) Channel Outputs to the MA8900 UNBALANCED Number 6 INPUTS Left and Right Jacks.
2.Connect a Control Cable from the A/V Processor TRIGger 2 Output to the MA8900 POWER
CONTROL PASSTHRU INPUT Jack.
Note: Refer to Setup “Passthru” on page 21 to assign the Number 6 INPUT as the “Passthru” Input.
3.Proceed to “Connecting Loudspeaker” on Page 11.
A/V Processor
9
Connecting for Bi-Amplification
Connecting for Bi-Amplification
The MA8900 Power Amplifier, together with an additional separate Power Amplifier, may be used to Bi-Amplify a Loudspeaker System. In the illustration on this page, the Power Amplifier of the MA8900 is connected to the Midrange/High Frequency Section of the Loudspeaker. The additional separate Power Amplifier is connected to the Low Frequency Section of the Loudspeaker System.
Warning: The Loudspeaker System used for Bi-Amplification must have the jumpers removed from between the MID/HIGH and LOW Frequency Sections of the Loudspeaker System. Failure to remove them could result in damage to the MA8900 and/or the separate Power Amplifier.
MA8900 Connections:
1.Remove the “McIntosh Jumpers” from between the OUTPUT 1 Jacks and the PWR AMP In Jacks located on the Rear Panel of the MA8900.
Note: Place the “McIntosh Jumper” in a safe place for possible future use.
2.Using a pair of shielded RCA Type Audio “Y” Adapters connect the OUTPUT 1 Jacks to the PWR AMP In Jacks, for both Left and Right Channels.
3.Connect the remaining unconnected part of the “Y” Adapters to the separate Power Amplifier.
4.Referring to the Loudspeaker Connection Instructions on page 11, and in the Owner’s Manual supplied with the Power Amplifier and Loudspeaker, connect the MA8900 Output Terminals to the Loudspeaker MID/HIGH Input Terminals.
Note: The Loudspeaker Connection illustrations on this page are for the Left Channel. Con nect the Right Channel Loudspeaker in the same manner.
“Y” adapter Cable
Left Channel |
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Loudspeaker |
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- |
+ |
10
Output Terminals
When connecting the Loudspeaker Hookup Cables to the MA8900 Amplifier Output Terminals please follow the steps below:
1.Rotate the top of the Output Terminal Post counterclockwise until an opening
B.
2. Insert the Loudspeaker hookup cable into the Output Terminal Post opening or the cable spade lug around the center post of
the Output Terminal. Refer to
* 3. Rotate the top of the Output
Terminal Post clockwise until it;
4. Place the supplied McIntosh Wrench over the top of the Out-
put Terminal and rotate it one 
quarter of a turn (90°) to secure 
the Loudspeaker Cable Connec- 
tion. Do not over tighten. Refer
How to Connect Loudspeakers
Caution: Do not connect the AC Power Cord to the MA8900 Rear Panel until after the Loudspeaker Connections are made. Failure to observe this could result in Electric Shock.
The connection instructions below, together with the MA8900 Connection Diagram located on the separate folded sheet “Mc2B”, 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 3.
The McIntosh MA8900 Power Amplifier Circuitry is designed for Loudspeakers with an impedance of 2 ohms, 4 ohms or 8 ohms. Connect a single Loudspeaker only to the Right and Left Output Terminals.
When connecting Loudspeakers to the MA8900 it is very important to use cables of adequate size, so
there is little to no power loss in the cables. The size is specified in Gauge Numbers or AWG (American Wire Gauge). The smaller the Gauge number, the larger the wire size:
Loudspeaker Cable Distance vs Wire Gauge Guide
Loudspeaker |
25 feet |
50 feet |
100 feet |
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(7.62 meters) |
(15.24 meters) |
(30.48 meters) |
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Impedance |
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or less |
or less |
or less |
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2 Ohms |
12AWG |
10AWG |
8AWG |
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4 Ohms |
14AWG |
12AWG |
10AWG |
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8 Ohms |
16AWG |
14AWG |
12AWG |
1.Prepare the Loudspeaker Hookup Cable for attachment to the MA8900 Power Amplifier:
Bare wire cable ends:
Carefully remove sufficient insulation from the cable ends, refer to figures F, G & H. If the cable is stranded, carefully twist the strands together as tightly as possible.
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Figure F |
Figure G |
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Figure H |
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Notes: 1. If desired, the twisted ends can be tinned with solder to keep the strands together.
2.The prepared bare wire cable ends may be inserted into spade lug connectors.
3.Banana plugs are for use in the United States and Canada only.
Banana Plugs are for use in the United States and Canada only:
2. Attach the previously prepared bare wire cable ends into the banana plugs and secure 
the connections. Refer to figure I. 
3. Rotate the Output Terminal Post
McIntosh Wrench, rotate the top of
the Output Terminal one quarter of
a turn (90°). Do not over tighten.
4. Referring to figure K, connect the Loudspeaker hookup cables with
banana plugs into the hole at the top of the terminal to
the MA8900 Negative Output Terminal and Positive Output Termi- ! "# $ ! " ' ! "
to match the impedance of the Loudspeaker, being careful to observe the correct polarities.
Note: The illustration located on the separate folded sheet “Mc2B” is for connection to an
If the Loudspeaker’s impedance is in-between the available connections, use the nearest lower
impedance connection. Refer to “General Information” Note 6 on page 3 for additional information.
WARNING: Loudspeaker terminals are hazardous live and present a risk of electric shock. For additional instruction on making Loudspeaker Connections contact your McIntosh Dealer or McIntosh Technical Support.
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