Haomuren DM90 Professional USB Microphone User Manual

1. Introduction

The Haomuren DM90 Professional USB Microphone is designed to deliver exceptional audio quality for a wide range of applications, including gaming, live streaming, podcasting, voiceovers, and online meetings. Featuring plug-and-play convenience, intelligent noise reduction, and wide compatibility, this microphone ensures clear and professional sound. Its stylish RGB lighting and flexible angle adjustment make it a versatile addition to any setup.

2. Safety Information

• Do not expose the microphone to extreme temperatures or humidity.
• Avoid dropping or subjecting the microphone to strong impacts.
• Keep the microphone away from water or other liquids.
• Do not attempt to disassemble or repair the microphone yourself. Contact customer support if service is required.
• Use only the provided accessories or those approved by the manufacturer.

3. Package Contents

Please check the box for the following items:

• 1 x Haomuren DM90 Microphone
• 1 x Pop Filter
• 1 x User Manual

4. Product Overview

Familiarize yourself with the microphone's components and controls.

Image: Multifunctional Knobs for earphone volume and reverberation adjustment. Lightly press to adjust.

Image: Rear ports including Type-C interface, real-time monitoring (headphone) port, and RGB lighting adjustment button.

Image: One-click mute button on top of the microphone. Short press to mute, long press to reduce noise.

5. Setup Instructions

1. Unpack the Microphone: Carefully remove the microphone, stand, and data cable from the packaging.
2. Assemble the Stand: Attach the microphone to its stand, ensuring it is securely fastened.
3. Connect to Computer: Plug the USB cable into the Type-C interface on the microphone and the other end into an available USB port on your computer (Windows or macOS).
4. Plug-and-Play: The microphone is plug-and-play, meaning no complicated drivers or software downloads are required. Your computer should automatically recognize the device.
5. Adjust Computer Volume: Before testing, adjust your computer's master volume to less than 50% to prevent unexpected loud audio.
6. Sound Test:
   a. Open your computer's audio settings.
   b. Select the Haomuren DM90 as your input device.
   c. Look for an 'applied listening check' or 'monitor' option. Enable this to hear your microphone's sound in real-time through your computer's speakers or headphones.
   d. For live recording, voice calls, or online lessons, it is recommended to turn off the listening function to prevent echo and current sound.

6. Operating Instructions

6.1. Multifunctional Knobs

The microphone features multifunctional knobs for easy control:

• Earphone Volume Adjustment: Use the dedicated knob to control the volume of your headphones connected to the real-time monitoring port.
• Reverberation Adjustment: Use the reverberation knob to add or reduce echo effects to your voice.
• Microphone Adjustment: Lightly press the microphone body to adjust certain settings (specific function may vary based on mode).

6.2. Mute and Noise Reduction

The top button provides quick control over your audio:

• Short Press: Instantly mute or unmute the microphone. This is ideal for quick interruptions during live streams or calls.
• Long Press: Activate or deactivate the noise reduction feature. This helps filter out background clutter like keyboard clicks, fan noise, and room echo.

6.3. RGB Lighting Adjustment

The RGB lighting can be adjusted via a button on the rear of the microphone. This allows for personalization and can enhance the aesthetic of your setup.

6.4. Real-time Monitoring

Connect your headphones to the 3.5mm jack on the rear of the microphone to monitor your audio in real-time without latency. This is crucial for ensuring optimal sound quality during recording or streaming.

6.5. Flexible Angle Adjustment

The microphone's design allows for multi-angle adjustment (up to 180 degrees). Freely adjust the microphone's position to optimize sound capture for different scenarios and speaking styles.

6.6. Metal Spray Screen

The microphone features a metal spray screen, which helps to absorb and filter out unwanted air flow and plosive sounds when speaking, contributing to clearer audio.

7. Specifications

Image: Frequency Response graph and Polar Pattern diagram.

8. Troubleshooting

No Sound Output:

• Ensure the USB cable is securely connected to both the microphone and your computer.
• Check your computer's sound settings to confirm the Haomuren DM90 is selected as the input device.
• Verify that the microphone is not muted (check the mute button on top).
• Adjust the input volume level in your computer's sound settings.
• Try connecting the microphone to a different USB port on your computer.

Poor Sound Quality/Background Noise:

• Ensure the microphone is positioned correctly, facing the sound source.
• Activate the noise reduction feature by long-pressing the top button.
• Minimize background noise in your environment (e.g., close windows, turn off fans).
• Check for loose connections or damaged cables.
• Ensure your computer's volume is not set too high, which can introduce distortion.

Echo during Monitoring:

• If you are monitoring your voice through computer speakers, disable the 'listen to this device' option in your sound settings to prevent echo. Use headphones connected directly to the microphone's monitoring port for best results.

9. Maintenance

• Cleaning: Use a soft, dry cloth to wipe the microphone's exterior. Do not use harsh chemicals or abrasive cleaners.
• Storage: When not in use, store the microphone in a clean, dry place away from dust and extreme temperatures.
• Cable Care: Avoid bending or twisting the USB cable excessively to prevent damage.

10. Warranty and Support

For detailed warranty information and customer support, please refer to the official user manual PDF available online or contact Haomuren customer service.

You can view the official user manual PDF here.