Drawmer CMC2 Compact Monitor Controller User Manual

1. Introduction

This manual provides comprehensive instructions for the setup, operation, and maintenance of your Drawmer CMC2 Compact Monitor Controller. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize its performance.

2. Safety Information

• Power Supply: Use only the factory-supplied 15V DC power supply. Using an incorrect power supply may damage the unit and void the warranty.
• Ventilation: Ensure adequate ventilation around the unit. Do not block ventilation openings.
• Moisture: Do not expose the unit to rain, moisture, or excessive humidity.
• Cleaning: Disconnect power before cleaning. Use a dry, soft cloth. Do not use liquid cleaners or aerosols.
• Servicing: Refer all servicing to qualified service personnel. Do not attempt to open or repair the unit yourself.

3. Package Contents

Verify that your package contains the following items:

• Drawmer CMC2 Compact Monitor Controller
• 15V DC Power Supply Unit
• User Manual (this document)

4. Product Overview

4.1 Front Panel Controls

The front panel provides all primary controls for audio monitoring and source selection.

Figure 4.1: Front view of the Drawmer CMC2 Compact Monitor Controller, showing all knobs and buttons for input selection, speaker selection, master volume, headphone control, and mix check functions.

• AUX INPUT Knob: Adjusts the level of the auxiliary input.
• SOURCE SELECT Buttons (I/P1, I/P2, AUX): Selects the active audio input source.
• SPEAKER SELECT Buttons (A, B, SUB): Activates the selected speaker outputs.
• MASTER VOLUME Knob: Controls the overall output level to the selected speakers.
• MUTE Button: Mutes all speaker outputs.
• HEADPHONE Knob: Adjusts the volume for the headphone output.
• MIX CHECK Buttons (ØREV, MONO, DIM): Provides phase reverse, mono sum, and dim functions for mix analysis.
• AUX INPUT (3.5mm Jack): Front panel auxiliary input for portable devices.
• HEADPHONE Output (6.35mm Jack): Front panel headphone output.

4.2 Rear Panel Connections

The rear panel houses all audio input and output connectors, along with the power input.

Figure 4.2: Rear view of the Drawmer CMC2 Compact Monitor Controller, displaying the DC power input, speaker outputs (Mono/Sub, R-B-L, R-A-L), and inputs (R-2-L, R-1-L).

• DC=15V Input: Connect the supplied 15V DC power adapter here.
• Power Switch: Toggles the unit's power on/off.
• SPEAKER OUTPUTS (MONO/SUB, R-B-L, R-A-L): Balanced XLR outputs for connecting up to two pairs of stereo monitors (A and B) and a mono subwoofer.
• INPUTS (R-2-L, R-1-L): Balanced XLR inputs for two stereo audio sources.

5. Setup

Follow these steps to set up your CMC2 controller:

1. Power Connection: Connect the supplied 15V DC power adapter to the 'DC=15V' input on the rear panel. Plug the adapter into a suitable power outlet. Do not power on the unit yet.
2. Input Connections:
   • Connect your primary audio source (e.g., audio interface, mixer) to the 'INPUTS R-1-L' using balanced XLR cables.
   • Connect a secondary audio source to the 'INPUTS R-2-L' using balanced XLR cables.
   • For portable devices, connect to the front panel 'AUX INPUT' (3.5mm jack) or the rear panel RCA auxiliary inputs (if available on your model, refer to specific product documentation).
3. Speaker Connections:
   • Connect your main studio monitors to the 'SPEAKER OUTPUTS R-A-L' using balanced XLR cables.
   • If using a second pair of monitors, connect them to 'SPEAKER OUTPUTS R-B-L'.
   • If using a subwoofer, connect it to the 'SPEAKER OUTPUTS MONO/SUB'.
4. Headphone Connection: If desired, connect your headphones to the front panel 'HEADPHONE' 6.35mm jack.
5. Power On: Once all connections are secure, press the power switch on the rear panel to turn on the CMC2.

6. Operating Instructions

This section details the functions of the CMC2's controls.

Figure 6.1: Close-up view of the Drawmer CMC2 front panel, highlighting the master volume, source select, speaker select, headphone, and mix check controls.

6.1 Source Selection

• Press the I/P1 button to select the audio source connected to Input 1.
• Press the I/P2 button to select the audio source connected to Input 2.
• Press the AUX button to select the auxiliary input (front panel 3.5mm jack).
• Only one source can be active at a time. The LED next to the selected button will illuminate.

6.2 Speaker Selection

• Press the A button to route the selected source to Speaker Output A.
• Press the B button to route the selected source to Speaker Output B.
• Press the SUB button to route the selected source to the Subwoofer Output.
• Multiple speaker outputs can be active simultaneously (e.g., A and SUB). The LEDs indicate active outputs.

6.3 Volume Control

• Rotate the large MASTER VOLUME knob clockwise to increase the output level to the selected speakers, and counter-clockwise to decrease it.
• Rotate the HEADPHONE knob to adjust the listening level for connected headphones.
• Rotate the AUX INPUT knob to adjust the input level of the auxiliary source.

6.4 Mix Check Functions

• Press the ØREV button to reverse the phase of the right channel, useful for checking phase compatibility.
• Press the MONO button to sum the stereo signal to mono, allowing you to check for mono compatibility issues in your mix.
• Press the DIM button to temporarily reduce the output volume by a fixed amount, useful for quick listening level changes without losing your main volume setting.

6.5 Mute Function

• Press the MUTE button to instantly silence all active speaker outputs. The LED will illuminate when mute is active. Press again to unmute.

7. Maintenance

The Drawmer CMC2 is designed for reliable operation with minimal maintenance.

• Cleaning: Keep the unit clean by wiping it with a dry, soft, lint-free cloth. Avoid abrasive cleaners or solvents.
• Environment: Operate the unit in a clean, dry environment, away from direct sunlight, heat sources, and excessive dust.
• Ventilation: Ensure that the ventilation slots are not obstructed to prevent overheating.

8. Troubleshooting

If you encounter issues with your CMC2, refer to the following common problems and solutions:

• No Power:
  • Ensure the 15V DC power adapter is securely connected to the unit and a working power outlet.
  • Check that the rear panel power switch is in the 'ON' position.
• No Audio Output:
  • Verify that the correct input source (I/P1, I/P2, or AUX) is selected and its LED is illuminated.
  • Ensure that at least one speaker output (A, B, or SUB) is selected and its LED is illuminated.
  • Check that the MASTER VOLUME knob is turned up and the MUTE button is not active (LED off).
  • Confirm all audio cables are securely connected to both the CMC2 and your speakers/audio sources.
  • Test with different cables or audio sources to isolate the problem.
• Distorted Audio:
  • Reduce the input level from your audio source.
  • Lower the MASTER VOLUME on the CMC2.
  • Check for damaged audio cables.
• Headphone Output Not Working:
  • Ensure headphones are fully plugged into the front panel jack.
  • Adjust the HEADPHONE volume knob.
  • Test with a different pair of headphones.

If the problem persists, contact Drawmer customer support or your authorized dealer for assistance.

9. Specifications

10. Warranty and Support

The Drawmer CMC2 Compact Monitor Controller is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Drawmer website for detailed warranty terms and conditions.

For technical support, service, or further inquiries, please contact your authorized Drawmer dealer or the Drawmer customer support team through their official channels.