Dusico ACM1HB Auto Calibration Microphone User Manual

Introduction

The Dusico ACM1HB Auto Calibration Microphone is designed to facilitate the automatic sound setup of compatible AV receivers, specifically those utilizing Audyssey calibration technology, such as Denon and Onkyo models. This microphone measures the acoustic properties of your listening environment to optimize speaker levels, distances, and equalization, ensuring an accurate and balanced audio experience.

This image shows the Dusico ACM1HB Auto Calibration Microphone. It features a compact, cylindrical design with a black finish and a standard 3.5mm audio jack for connecting to compatible AV receivers.

Setup

1. Connect the Microphone: Locate the dedicated microphone input port on your AV receiver. This port is typically labeled 'MIC' or 'SETUP MIC'. Insert the 3.5mm jack of the Dusico ACM1HB microphone firmly into this port.
2. Position the Microphone: Place the microphone at your primary listening position. For accurate calibration, the microphone should be at ear height when seated. A tripod or a stable surface can be used to maintain its position.
3. Ensure a Quiet Environment: During the calibration process, it is crucial to minimize all background noise. Turn off air conditioners, fans, televisions, and ask household members to remain quiet.
4. Initiate Calibration: Access your AV receiver's on-screen display menu. Navigate to the 'Setup' or 'System Setup' section and select the 'Audyssey Setup' or 'Auto Calibration' option. Follow the on-screen prompts provided by your receiver.

Operating

Once the calibration process is initiated, your AV receiver will emit a series of test tones through each connected speaker. The Dusico ACM1HB microphone will measure these tones to determine various parameters:

• Speaker Size: Identifies if speakers are full-range or require a subwoofer.
• Speaker Distance: Calculates the distance of each speaker from the listening position.
• Speaker Levels: Adjusts the volume of each speaker to ensure a balanced sound field.
• Equalization: Applies room correction filters to compensate for acoustic anomalies.

Audyssey calibration typically requires multiple measurement points. After the first measurement at the primary listening position, the receiver will prompt you to move the microphone to several other listening positions within your room. This helps the system gather more comprehensive data for optimal sound correction. Once all measurements are complete, the receiver will process the data and apply the calculated settings. Ensure you save these settings when prompted.

Maintenance

• Cleaning: Keep the microphone clean and free of dust. Use a soft, dry, lint-free cloth to gently wipe the exterior. Do not use liquid cleaners or solvents.
• Storage: When not in use, store the microphone in a protective case or a safe, dry place away from direct sunlight and extreme temperatures. This helps prevent physical damage and prolongs its lifespan.
• Handling: Handle the microphone with care. Avoid dropping it or subjecting it to strong impacts, as this can damage the internal components.

Troubleshooting

• Microphone Not Detected:
  • Ensure the microphone is securely plugged into the correct 'MIC' or 'SETUP MIC' port on your AV receiver.
  • Verify that your receiver is powered on and in the correct setup mode to detect the microphone.
  • Consult your AV receiver's user manual for specific instructions on microphone detection and calibration initiation.
• Calibration Errors or Inaccurate Results:
  • Confirm that the room is quiet and free from background noise during the entire calibration process.
  • Ensure the microphone is positioned correctly and stably at each measurement point, at ear height.
  • Check for any physical obstructions between the speakers and the microphone that might interfere with sound measurements.
  • If issues persist, try resetting your receiver's settings to factory defaults (if applicable) and re-running the calibration.
• No Test Tones During Calibration:
  • Verify that all speakers are properly connected to your AV receiver and that speaker wires are securely attached.
  • Check for any shorts or disconnections in the speaker wiring.
  • Ensure the receiver's master volume is not muted or set to an extremely low level.

Specifications

Warranty and Support

For warranty information and technical support regarding your Dusico ACM1HB Auto Calibration Microphone, please refer to the documentation provided with your AV receiver or contact the manufacturer of the Dusico ACM1HB microphone directly. Specific warranty terms may vary.