MCINTOSH C45 (01) PDF DOCUMENT

Please read and follow these safety instructions before operating your MCINTOSH C45:

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.

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.

WARNING: TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

CAUTION: 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.

1. It is recommended that a qualified professional assist you in the choice and installation of a McIntosh Audio System for your home.

2. Before making any connections to the C45, make sure that the Main POWER Switch is in the Off position. When the C45 and other McIntosh Components are in their Standby Mode the Microprocessor’s Circuitry inside each component is active and communication is occurring between them. Failure to do so could result in malfunctioning of some or all of the system’s normal operations.

3. The optional McIntosh TM1 AM/FM Tuner Module can be added to the C45 Audio Control Center.

4. For additional connection information, refer to the owner’s manual(s) for any component(s) connected to the C45.

5. Up to four McIntosh Sensors or Keypads can be wired in parallel for remote operation.

6. The Power Control Signal present at the ACC(B) Jack is controllable by either using the ACC ON or ACC OFF Push-buttons on the Remote Control or by assignment when in the Setup Mode.

7. 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.

8. Sound Intensity is measured in units called Decibels and “dB” is the abbreviation.

XLR Connectors:

PIN 1: Shield/Ground

PIN 2: + Signal

PIN 3: – Signal

Power Control and Trigger Connectors (1/8 inch stereo mini phone plug):

Positive

N/C

Ground

Data and IR Port Connectors (1/8 inch stereo mini phone plug):

Data Port Connector:

– Data Signal

– N/C

– Data Ground

IR Input Port Connector:

– Data Signal

– N/C

– Ground

Keypad Terminal Connector (RJ-45):

To use a WK-3 or WK-4 Keypad with the C45, connect the shield and four leads of a shielded 4 conductor cable to a RJ-45 Connector Plug according to the numbers listed below.

C45 RJ-45 Pinout:

1. Signal Data

2. Signal Data Gnd. and Cable Shield

3. N/C

4. Supply Voltage Negative

5. Supply Voltage Positive

6. N/C

7. N/C

8. N/C

WK-3 and WK-4 Keypad Pinout:

1. Supply Voltage Positive

2. Supply Voltage Negative

3. Cable Shield

4. Signal Data

5. Signal Data Gnd

RAA1 Connector:

Connect the shield and two leads of a shielded 2 conductor cable to the supplied 5 Pin Terminal Connector Plug. The connections are Black (RF), Red (TV), and Green (GND).

Balanced Inputs and Outputs: One pair of Balanced high level Inputs and a six channel Balanced Output are provided.

Precision Tracking Variable Rate Volume Control: Volume levels are controlled by a new Multi-Stage Precision Digitally Controlled Attenuator System with a tracking accuracy of 0.1dB. Levels change in 214 individual 0.5dB steps. The Variable Rate Volume Control Circuitry provides an ideal rate of change with control rotation.

Tone Control with Assignable Bypass: The Bass and Treble Control Circuit Elements can be removed from the Signal Path of any selected input.

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

Electromagnetic 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 C45 can be matched in level, so that there are no abrupt changes in volume levels between the different Inputs. Any of the eight Inputs can have their Input Title reassigned to match the sources in the system.

Power Control Output and Trigger Assignment: A Power Control connection for convenient Turn-On of McIntosh Power Amplifiers, Source Components and Accessories is included. Two of the Power Control Outputs may be assigned to activate when a given Input is selected.

Multichannel Inputs: There are two six channel Inputs that are assignable for sources such as DVD-Audio Player, Super Audio CD Player and Satellite Receivers.

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

Low Distortion: Distortion levels of all types are less than 0.002%. Music is amplified with total transparency and accuracy.

Moving Magnet Phono Input: There is a Precision Phono Preamplifier for Moving Magnet Cartridges.

Remote Control: The C45 includes a Remote Control that allows remote operation of the Front Panel Controls and Push-buttons.

Optional External Keypad Sensor Input: There are provisions for connecting External Keypad and/or Sensors, which allows for enjoyment of your McIntosh System from other room(s) in your home.

Subwoofer Output: The C45 Audio Control Center provides a subwoofer output from the two channel and six channel inputs.

Special Power Supply: Fully regulated Power Supply with shielded power transformer ensures stable noise free operation even if the power line should vary.

Fiber Optic Solid State Front Panel Illumination: The Illumination of the Front Panel is accomplished by the combination of custom designed Fiber Optic Light Diffusers and Light Emitting Diodes (LEDs). This provides even Front Panel Illumination, together with the extra long life LEDs.

Glass Front Panel: The famous McIntosh Illuminated Glass Front Panel ensures the pristine beauty of the C45 will be retained for many years.

The MCINTOSH C45 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 C45 when it is custom installed. The four feet together with the mounting screws should be retained for possible future use if the C45 is removed from the custom installation and used free standing.

Always provide adequate ventilation for your C45. Cool operation ensures the longest possible operating life. Do not install the C45 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.

Custom Cabinet Installation:

For custom installation, provide the following minimum spacing dimensions for cool operation:

• Allow at least 2 inches (5.08cm) above the top.

• Allow at least 2 inches (5.08cm) below the bottom.

• Allow at least 1 inch (2.54cm) on each side.

• Allow 17 inches (43.18cm) 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. The required panel cutout, ventilation cutout and unit dimensions are as follows:

C45 Front Panel Custom Cabinet Cutout:

• Width: 17-1/16″ (43.34cm)

• Height: 4-7/8″ (12.38cm)

C45 Bottom View in Custom Cabinet (Ventilation Cutout):

• Width: 14″ (35.56cm)

• Depth: 11-1/2″ (29.21cm)

Balanced Main OUTPUTS: Contain the program signals for all six channels.

Unbalanced Main OUTPUTS: Contain the program signals for all six channels.

VCR, TAPE, SAT, DVD, CD2, CD, TUNER unbalanced INPUTS: Accept high level program source signals.

Unbalanced 6 CHANNEL INPUT Number 2: For signals coming from a six channel component source.

Unbalanced 6 CHANNEL INPUT Number 1: For signals coming from a six channel component source.

Ground connection: For turntables.

DATA PORTS: Send signals to compatible source components to allow remote control operation.

PH/AUX: Accepts high level program source signals or signals from a Moving Magnet Phono Cartridge. The SETUP feature determines whether the Input Jacks are set for AUX or PHONO.

BALANCED INPUTS: For a two channel component source.

VCR and TAPE Record Outputs: Contain the signals for making a recording.

POWER CONTROL and Trigger Outputs: Send Turn-On signals to other components connected to the C45. The MAIN Jacks send the signal when the C45 is switched On. The ACC POWER CONTROL sends a turn On/Off signal to other components using the Remote Control or preselected in Setup. The SETUP Feature in the C45 allows the MAIN(A) and ACC(B) Power Control Jacks to be re-assigned to Switch On when the desired Input Source is selected.

IR INPUT: For connecting an IR Receiver.

External KEYPAD or Sensor Jack: Permits the connection of a McIntosh Keypad or IR Sensor for remote operation.

AC Power Cord Connector: Connect the power cord to a live AC outlet. Refer to information on the back panel of the C45 to determine the correct voltage.

The three Power Control Jacks have default settings. The following hookup example utilizes the default settings. If you wish to use one of the two assignable Power Control Outputs as a dedicated Trigger instead, connect that Component Source Unit’s Power Control Input to the desired Trigger Output MAIN(A) or ACC(B). The default setting in the C45 Setup needs to be changed to match the new Power Control Connection.

1. Connect a Control Cable from the C45 POWER CONTROL MAIN(A) Jack to the Power Control In on the McIntosh CD Player.

2. Connect a Control Cable from the McIntosh CD Player Power Control Out Jack to the Power Control In Jack on the McIntosh DVD-Audio Player.

3. Optionally, connect a Control Cable from the McIntosh DVD-Audio Player Power Control Out Jack to the Power Control Jack on the McIntosh Power Control. Note: The McIntosh Power Control provides AC Power Switching to components that do not have Power Control Connections.

4. Connect a Control Cable from the C45 POWER CONTROL MAIN Jack to the Power Control In Jack on the McIntosh Power Amplifier.

Data Control Connections facilitate the ability to remotely operate McIntosh Source Components using the supplied C45 Remote Control. By adding a McIntosh Remote Control Translator/Repeater, non-McIntosh Source Devices like a Tape Deck can also be remotely controlled.

1. Connect a Control Cable from the C45 DVD DATA PORT Jack to the DATA IN Jack on the McIntosh DVD-Audio Player.

2. Connect a Control Cable from the C45 TUNER DATA PORT Jack to the DATA IN Jack on the McIntosh Tuner.

3. Optionally, connect a Control Cable from the C45 TAPE DATA PORT Jack to the Number 1 DATA IN Jack on the McIntosh Remote Control Translator/Repeater. Connect the Emitter Eye plug end to the McIntosh Remote Control Translator/Repeater EMITTER Jack and attach the Emitter Eye over the IR Sensor Window on the Tape Deck.

4. Optionally, connect a cable from the KEYPAD Jack to a Keypad. Note: A Wall Mounted IR Sensor may also be used in place of the Keypad.

The MCINTOSH C45 has assignable Inputs. Before the Balanced and Phono Inputs can be used, they must first be selected in the Setup Mode.

1. Connect Audio Cables from the McIntosh C45 RF and LF Balanced OUTPUTS to the McIntosh Power Amplifier Balanced INPUTS. Note: The unbalanced RF and LF Audio OUTPUTS and unbalanced Power Amplifier Inputs may be used instead of the Balanced Connections.

2. Connect Audio Cables from the McIntosh CD Player Balanced Audio Outputs to the C45 R and L BALANCED INPUTS. Note: The unbalanced Audio Outputs and CD2 INPUTS may be used instead of the Balanced Connections.

3. Connect Audio Cables from a McIntosh DVD-Audio Player 2CH Outputs to the C45 DVD INPUTS.

4. Connect an Audio Cable from a Turntable to the C45 PH/AUX INPUTS and the Turntable Ground Connection to the GND grounding post.

5. Connect an Audio Cable from the C45 TAPE OUTPUTS to the Record Inputs of a Tape Recorder and from the C45 TAPE INPUTS to a Tape Recorder Outputs.

6. Connect the C45 Power Cord to a live AC outlet.

The MCINTOSH C45 has assignable Inputs. Before the Balanced and Phono Inputs can be used, they must first be selected in the Setup Mode.

1. Connect Audio Cables from the McIntosh C45 Balanced LF (Left Front Channel) and the RF (Right Front Channel) OUTPUTS to the McIntosh Power Amplifier Number One Balanced INPUTS. Note: The unbalanced Audio OUTPUTS and unbalanced Power Amplifier Inputs may be used instead of the Balanced Connections.

2. Connect Audio Cables from the McIntosh C45 Balanced CENTER OUTPUT to the McIntosh Single Channel Power Amplifier Balanced INPUT. Note: The unbalanced Audio OUTPUT and unbalanced Power Amplifier Input may be used instead of the Balanced Connection.

3. Connect Audio Cables from the McIntosh C45 Balanced LS (Left Surround Channel) and the RS (Right Surround Channel) OUTPUTS to the McIntosh Power Amplifier Number Two Balanced INPUTS. Note: The unbalanced Audio OUTPUTS and unbalanced Power Amplifier Inputs may be used instead of the Balanced Connections.

4. Connect an Audio Cable from the McIntosh C45 SUB OUTPUT to the McIntosh Powered Subwoofer Left Input.

5. Connect Audio Cables from the McIntosh CD Player Balanced Audio Outputs to the C45 R and L BALANCED INPUTS. Note: The unbalanced Audio Outputs and CD2 INPUTS may be used instead of the Balanced Connections.

6. Connect Audio Cables from a McIntosh DVD-Audio Player 5.1CH Outputs to the C45 6 CHANNEL 1 INPUTS.

7. Connect Audio Cables from a McIntosh DVD-Audio Player 2CH Outputs to the C45 DVD INPUTS.

8. Connect an Audio Cable from a Turntable to the C45 PH/AUX INPUTS and the Turntable Ground Connection to the GND grounding post.

9. Connect an Audio Cable from the C45 TAPE OUTPUTS to the Record Inputs of a Tape Recorder and from the C45 TAPE INPUTS to the Tape Recorder Outputs.

10. Connect the C45 Power Cord to a live AC outlet.

BASS Control: Provides 12dB boost or cut at low frequencies with a flat center position.

HEADPHONES Jack: For low impedance dynamic headphones for 2 channel listening.

TREBLE Control: Provides 12dB boost or cut at high frequencies with a flat center position.

Alphanumeric Display: Indicates the Sources, Volume Levels, Operational Functions, TM1 Tuner Functions and Setup Mode Settings.

INPUT Control: Selects various Program Sources for listening and is used during the entering or removal of radio stations into presets.

VOLUME Control: Adjusts the listening volume level.

POWER Switch: Main Switch turns all AC power completely On or Off.

STANDBY/ON Push-button: Switches the C45 On, or Off (Standby). The LED Indicator illuminates when there is incoming AC Power.

MUTE Push-button: When pushed the audio in the OUTPUTS and HEADPHONES are muted. Press and hold in for two seconds to allow for just Headphone Listening.

SETUP Push-button: This push-button with indicator, activates the Setup Mode. Setup allows the changing of the Inputs Titles, Volume Levels, Special Functions, TM1 Tuner Functions and the Display Brightness from the default settings.

TRIM Push-button: Selects various channels for trim level adjustments.

TRIM LEVEL (Up/Down) Push-buttons: These push-buttons allow Trim Level Adjustments for each Input. It also allows volume adjustments for the Center, Subwoofer and Surround Channels. The push-buttons also select various setup functions and radio stations with the TM1 installed.

6CH MODE (ENTER) Push-button: This push-button with indicator, selects either 2 Channel or 6 Channel Mode of operation when one of the two 6 Channel Inputs is selected. When the TM1 is installed it is used to enter radio stations into a Preset Memory Location.

TONE BYPASS (MENU) Push-button: When this push-button with indicator is activated, the audio signal totally bypasses the Tone Control Circuitry. It is also used for selecting various menu options during the setup mode.

IR Sensor: For Remote Control Operation.

The MCINTOSH C45 has been factory configured for default operating settings. If you wish to make changes, a Setup Feature is provided to customize the operating settings.

1. Press the POWER Switch to ON. The Red LED above the STANDBY/ON Push-button lights to indicate the C45 is in Standby mode. To switch On the C45 press the STANDBY/ON Push-button.

2. Press the C45 Front Panel SETUP Push-button. The LED above the SETUP Push-button will illuminate and the Front Panel Display will indicate DISPLAY 10 (or the last accessed setup mode).

3. Press TONE BYPASS (Menu) Push-button to advance through the different possible adjustment selections. If the optional TM1 Tuner Module is installed, there will be 2 additional adjustments.

4. To exit from a specific Setup Mode, press the SETUP Push-button a second time. The LED above it will extinguish and the display will revert to its normal state.

Default settings without optional TM1 AM/FM Tuner Module:

Default settings with optional TM1 AM/FM Tuner Module installed:

The Front Panel Alphanumeric DISPLAY Brightness may be varied from a setting of 1 (Dim) to 15 (Bright).

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

2. Press the TONE BYPASS (Menu) Push-button until the word DISPLAY 10 appears.

3. Press the TRIM LEVEL Down ▼ Push-button to decrease the brightness or Up ▲ to increase it, until the desired level is indicated on the display.

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

The version of the firmware in the C45 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 TONE BYPASS (Menu) Push-button until VERSION 1.0 or higher appears. The number after the word VERSION is the firmware number.

Note: If the optional TM1 AM/FM Tuner Module is installed, an extra character will appear to the right of the version number, indicating the country for which the TM1 is set (U for USA, J for JAPAN, E for EUROPE).

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

You can customize various settings in the Setup Mode. To access and change a setting, follow this general procedure:

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

2. Press the TONE BYPASS (Menu) Push-button repeatedly until the desired function appears on the display (e.g., RE-TITLE INPUTS, LEVEL ADJUSTMENT, 6 CHANNEL INPUT, BALANCED INPUT, 2CH SUB, POWER CONTROL TRIGGERS, AUTO TONE, REMOTE CONTROL SELECTION).

3. Use the INPUT Control knob and/or the TRIM LEVEL Up/Down Push-buttons to change the value or assignment for that function.

4. Press the SETUP Push-button again to exit Setup Mode and save the changes.

Specific Setup Procedures:

Re-Title Inputs: To rename an input (e.g., changing AUX to PHONO), enter Setup Mode, navigate to “INPUT 1 *AUX”, and rotate the INPUT Control to select a new title like “PHONO”. Unused inputs can be switched “Off”.

Level Adjustment (Trim): To match volume levels between sources, select a reference source (e.g., Tuner) and set the listening level. Enter Setup Mode, go to “LEVEL 0.0 TUN”, then rotate the INPUT control to select another source (e.g., CD2). Use the TRIM LEVEL Up/Down buttons to adjust its level until it matches the reference source. The adjustment range is ±6dB.

Assign 6 Channel Inputs: To assign a 6-channel input to a source (e.g., DVD), enter Setup Mode, navigate to “6 CHAN 1 OFF”, and rotate the INPUT control to select the source, displaying “6 CHAN 1 DVD”.

Assign Balanced Input: To assign the balanced input to a source (e.g., CD2), enter Setup Mode, navigate to “BALANCED OFF”, and rotate the INPUT control to select the source, displaying “BALANCED CD2”.

Enable 2 Channel Subwoofer: To enable the subwoofer output for 2-channel inputs, enter Setup Mode, navigate to “2CH SUB OFF”, and use the TRIM LEVEL buttons to change it to “2CH SUB ON”.

Assign Power Control Triggers: To have a power control jack activate only for a specific input (e.g., MAIN(A) for DVD), enter Setup Mode, go to “TRIG TUN > –“. Rotate the INPUT control to “TRIG DVD > –“, then use the TRIM LEVEL buttons to select “TRIG DVD > A”.

Enable Auto Tone: To have the C45 remember the TONE BYPASS setting for each input, enter Setup Mode, navigate to “AUTOTONE OFF”, and use the TRIM LEVEL buttons to change it to “AUTOTONE ON”.

Remote Control Selection: To switch between normal (NORM) and alternate (ALT) remote codes (for use with another McIntosh unit), enter Setup Mode, go to “REMOTE NORM”, and use the TRIM LEVEL buttons to select “REMOTE ALT”. Note: Using ALT codes requires a different remote control.

Power On and Off:

Press the main POWER switch on the front panel to ON. The red LED above the STANDBY/ON push-button will light up. Press the STANDBY/ON push-button to turn the C45 on. Press it again to return to Standby mode. For normal operation, use the Standby/On push-button or the POWER push-button on the remote control. If the C45 will not be used for an extended period, turn the main POWER switch to Off.

Input Source Selection:

Select the desired source by rotating the front panel INPUT Control or by pressing the corresponding source push-button on the Remote Control.

Volume Control:

Adjust the listening level by rotating the front panel VOLUME Control or by pressing the Up/Down VOLUME push-buttons on the Remote Control.

Mute:

Press the MUTE push-button on the front panel or remote to mute audio at the OUTPUTS and HEADPHONES jack. The display will show the source name followed by “MUTE”. Press MUTE again or adjust the volume to un-mute. To mute only the main outputs and continue listening through headphones, press and hold the front panel MUTE button for at least 3 seconds. Press MUTE again to un-mute the main outputs.

Tone Bypass:

Press the TONE BYPASS push-button to bypass the Bass and Treble controls for a flat frequency response. If AUTOTONE is set to ON in Setup Mode, the C45 will remember for each input whether the Tone Bypass is active.

Bass and Treble Controls:

Adjust the BASS and TREBLE controls to suit your listening preference. Clockwise rotation increases, and counter-clockwise rotation decreases the effect. The controls are flat (bypassed) in the center position and affect the Front Left and Right channels only.

6 Channel Mode Operation:

When you select an input that has been assigned as a 6 Channel Input in the Setup Mode, the MCINTOSH C45 will automatically switch to 6 Channel Mode, and the red LED above the 6CH MODE push-button will illuminate. To revert to 2 Channel Mode (using only the Front Left and Right jacks for that input), press the 6CH MODE push-button. The C45 will remain in 2 Channel Mode for that input until the button is pressed again or the unit is powered off and on.

Trim and Trim Level Adjustments:

Trim adjustments can be made using the front panel controls or the remote control, offering a ±12dB range.

For 2 Channel Mode (with 2CH SUB enabled in Setup):

1. Press and release the TRIM push-button until “SUB 0.0” appears on the display.

2. Use the LEVEL Up ▲ or Down ▼ push-buttons to adjust the Subwoofer channel level. For example, pressing LEVEL Up until “SUB 4.5” appears increases the level by 4.5dB.

For 6 Channel Mode:

1. Select an input assigned as a 6 Channel source.

2. Press and release the TRIM push-button to cycle through the available channels: CENTER, SUBWOOFER, and SURROUND.

3. When the desired channel appears on the display (e.g., “CENTER 0.0”), use the LEVEL Up ▲ or Down ▼ push-buttons to adjust its level.

The Front Panel Display will revert to showing the input source and volume setting approximately four seconds after the last trim adjustment is made. To exit Trim Mode quickly, press the TRIM push-button until the input name reappears.

Reset of Microprocessors:

In the event that the controls of the C45 stop functioning, which is usually caused by interruptions in AC power, perform the following reset:

1. Push the main POWER switch to OFF.

2. Wait about two minutes.

3. Push the POWER switch ON, followed by pushing the STANDBY/ON Push-button.

This will reset the microprocessors and the Audio Control Center will be returned to normal operation.

Restore Factory Default Settings:

To restore the C45 to its original factory settings, perform the following procedure:

1. Press and hold in the 6CH MODE Push-button together with the MUTE Push-button.

2. After approximately 5 seconds, the Front Panel Alphanumeric Display will indicate “MASTER RESET”.

3. Release both push-buttons. The display will now indicate “– CLEARED –” and the C45 will switch Off.

4. Press the STANDBY/ON Push-button on the C45 and proceed to the Setup mode to re-enter any custom settings that have been previously made.

The supplied remote control can operate the MCINTOSH C45 and contemporary McIntosh source components. Earlier components may require a McIntosh Remote Control Translator (RCT).

Lighting: Press and release the LIGHTING Push-button to momentarily illuminate the upper half of the remote. The remote cannot send a command while the LIGHTING button is depressed.

Power: Press POWER to turn the C45 On or Off (Standby). The HOME button turns certain connected McIntosh components On or Off.

Input Source Selection: Press one of the input push-buttons (CD, TUNER, PHONO, DVD, SAT, TV, TAPE, VCR) to select a default or reassigned program source.

Volume: Press the Up or Down VOLUME Push-button to raise or lower the listening level. Note: TAPE and VCR OUTPUTS are not affected by volume changes.

Mute: Press the MUTE push-button to mute audio. Press MUTE a second time to unmute.

Mode: Press the MODE Push-button to select between 2 Channel and 6 Channel operation.

Trim and Level: Press the TRIM Push-button to activate the TRIM Function. Then press the TRIM LEVEL Up and Down Push-buttons to adjust the sound level of various channels.

Disc/Tape Functions: Use the transport push-buttons (STOP, PLAY, REWIND, PAUSE, F.FORWARD, RECORD) to operate a Disc Player or Tape Recorder. Press E|| to pause playback.

Numbered Push-buttons (0-9): Use to access tuner station presets or Disc chapters/tracks.

Disc and Track: Use the DISC and TRACK Push-buttons when a Disc Player is being used. Note: Certain Disc Players may require a numbered push-button to be pressed immediately after the Disc or Track push-button is depressed.

Acc On/Acc Off: Press ACC ON to turn the power ON and ACC OFF to turn the power OFF to certain McIntosh Disc Players. These buttons also control the signal at the Accessory(B) Power Control Jack unless reassigned.

Frequency Response: +0, -0.5dB from 20Hz to 20,000Hz

Total Harmonic Distortion: 0.002% maximum from 20Hz to 20,000Hz at rated output

Signal To Noise Ratio:

Phono: 86dB below 10mV input (A Weighted)

High Level: 96dB below rated output (A Weighted)

Rated Output Voltage:

2.5V Unbalanced Outputs (Main)

5.0V Balanced Outputs (Main)

Maximum Voltage Output:

8V Unbalanced

16V Balanced

Output Impedance:

250 ohms Unbalanced

500 ohms Balanced

Input Impedance:

Phono: 47k Ohms, 65pf

High Level: 22k Ohms Unbalanced, 50k Ohms Balanced

Sensitivity for Rated Output:

Phono: 4.5mV

High Level: 450mV Unbalanced, 900mV Balanced

Maximum Input Signal:

Phono: 50mV

High Level: 5V Unbalanced, 10V Balanced

Voltage Gain:

Phono to Tape/VCR Out: 40dB

Phono to Output (Main): 55dB

High Level to Tape/VCR Out: 0dB

High Level to Output (Main): 15dB

Tone Controls:

Bass Control: ±12dB at 30Hz

Treble Control: ±12dB at 10,000Hz

Power Requirements:

100/110/120/220/230/240 Volts 50/60Hz, 35 watts (Refer to the rear panel of the C45 for the correct voltage)

Overall Dimensions:

Width: 17-1/2 inches (44.45cm)

Height: 6 inches (15.24cm) including feet

Depth: 16-1/2 inches (41.91cm) including the Front Panel and Knobs

Weight:

21 pounds (9.53 kg) net

35 pounds (15.88 kg) in shipping carton

The optional McIntosh TM1 AM/FM Tuner Module can be added to the MCINTOSH C45 for radio reception. It is available from your dealer and can be installed at any time.

Connecting the Antenna Components:

1. Connect the Remote AM antenna (RAA1) by plugging the DIN connector of the supplied 3 conductor cable into the AM ANT, DIN socket on the back panel of the C45.

2. Connect a 75 ohm coax cable from an FM antenna or cable system to the C45, 75 ohm FM ANT connector.

Operating the Tuner:

There are several methods for tuning stations:

1. Select TUNER FM or TUNER AM using the Front Panel INPUT Control or the remote’s TUNER button followed by the AM or FM button.

2. Manual Tuning: Press the Front Panel TUNE (TRIM LEVEL) Up/Down buttons.

3. Automatic Seek: Press and release the CHANNEL Up/Down buttons on the remote. The tuner will stop at the next available station. This can also be done from the front panel if the tuning mode in Setup is changed to SEEK.

4. Preset Selection: Press the NEXT or BACK buttons on the remote to cycle through stored presets. This can also be done from the front panel if the tuning mode in Setup is changed to PRESET.

5. Direct Preset Access: Select the Tuner, then use the numbered buttons (0-9) on the remote to go directly to a preset.

6. Preset Review: Press the REVIEW button on the remote to automatically audition each stored preset for about 5 seconds. Press REVIEW again to stop.

Assigning Tuner Presets:

1. Select the AM or FM band and tune to a desired station.

2. Momentarily press and release the front panel ENTER push-button. The display will show “1 AVAILABLE” (or the next open preset number). You can rotate the INPUT (PRESET) control to select a different preset number (2-9) if desired.

3. Press the ENTER push-button a second time to store the station. The display will confirm the storage.

4. Repeat steps 1-3 to store up to 9 AM and 9 FM stations.

Clearing an Assigned Preset:

1. Press the ENTER push-button.

2. Rotate the INPUT control to select the preset number you wish to clear.

3. Press and hold the ENTER push-button for approximately 3 seconds until the display shows the preset number followed by “CLEARED”.

Note: To replace a preset, you do not need to clear it first. Simply tune to the new station and save it to the existing preset number.

Optimizing AM Reception:

Locate the RAA1 Remote AM Antenna away from electronic interference. Rotate it for maximum signal strength. For further optimization, a dealer can perform the following adjustments with a NON-METALLIC tool:

1. Tune to a weak AM station near 600kHz and adjust the 600kHz Transformer L1 for maximum signal strength.

2. Tune to a weak AM station near 1400kHz and adjust the 1400kHz Trimmer Capacitor C1 for maximum signal strength.

3. Repeat steps 1 and 2 until no further improvements can be obtained.

FM Tuner Specifications:

Useable Sensitivity: 14dBf (1.4uV across 75 ohms)

50dB Quieting Sensitivity: Mono 19dBf (2.4uV), Stereo 35dBf (15uV)

Signal To Noise Ratio: Mono 75dB, Stereo 70dB

Frequency Response: Mono/Stereo +0, -1dB from 20 to 15,000Hz

Harmonic Distortion: Mono 0.3%, Stereo 0.45% – 0.65%

Intermodulation Distortion: Mono 0.25%, Stereo 0.45%

Capture Ratio: 1.2dB

Alternate Channel Selectivity: 75dB

Spurious Response: 100dB

Image Response: 75dB

RF Intermodulation: 65dB

Stereo Separation: 45dB at 100Hz, 45dB at 1,000Hz, 35dB at 10,000Hz

SCA Rejection: 65dB

AM Tuner Specifications:

Sensitivity: 20uV External Antenna Input

Signal To Noise Ratio: 48dB at 30% modulation, 58dB at 100% modulation

Harmonic Distortion: 0.5% maximum at 50% modulation

Frequency Response: 50Hz to 6kHz NRSC

Adjacent Channel Selectivity: 45dB minimum IHF

Image Rejection: 65dB minimum from 540 to 1600kHz

IF Rejection: 80dB minimum

In the event it is necessary to repack the equipment for shipment, it must be packed exactly as shown. It is very important that the four plastic feet are attached to the bottom of the equipment to ensure proper 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. The packing materials and their part numbers are listed below: