1. Introduction
The Shure DuraPlex Omnidirectional Headset Microphone (Model DH5B/O-LM3) is designed for professional audio applications, offering exceptional durability and high-quality sound reproduction. Its robust construction and advanced features make it suitable for demanding environments.
Key features include:
- 5 mm omnidirectional subminiature design for discrete placement and improved gain-before-feedback.
- IP57 certified dust-resistant and waterproof rating, ensuring reliability in challenging conditions.
- 1.6 mm Shure-designed cable with dual-redundant ground for unprecedented flex life and virtually zero memory effect.
- Neutral, full sound quality suitable for film, broadcast, speech, theater, and performance applications.
- Included Presence Cap for tailored frequency response in speech applications.
- Available with LEMO terminations for variable wireless system connectivity.
- High RF immunity, compatible with digital wireless systems without RF interference.
2. Setup and Components
The DuraPlex headset microphone comes with essential accessories for proper setup and use.
2.1 Unpacking and Initial Inspection
Carefully unpack all components and inspect for any signs of damage. The package should contain:
- Shure DuraPlex Omnidirectional Headset Microphone (DH5B/O-LM3)
- Carrying Case
- Tie Clip
- Snap Fit Windscreen
- Foam Windscreen
- Sticky Mount
- Presence Cap
Figure 2.1: Included accessories for the Shure DuraPlex microphone, featuring the carrying case, various windscreens, and mounting options.
2.2 Connecting the Microphone
The DH5B/O-LM3 model features a LEMO connector for integration with compatible wireless systems. Ensure the connector is securely attached to your transmitter.
Power Requirements: This is a condenser microphone and requires phantom power to operate. Refer to your wireless system's user manual for details on enabling phantom power.
Figure 2.2: Front view of the Shure DuraPlex headset microphone, showing the omnidirectional capsule and headset frame.
Figure 2.3: Side view of the Shure DuraPlex headset microphone, highlighting the flexible boom and ear hooks.
3. Operating Instructions
3.1 Wearing the Headset Microphone
Position the headset comfortably on your head, ensuring the ear hooks are secure. Adjust the microphone boom so the capsule is approximately 1-2 cm from the corner of your mouth, slightly off-center to minimize plosives.
3.2 Optimizing Sound Quality
The omnidirectional polar pattern captures sound equally from all directions, providing a natural and consistent audio pickup. For speech applications, the included Presence Cap can be used to enhance clarity and intelligibility.
Ensure your wireless system's gain settings are properly adjusted to avoid clipping or low signal-to-noise ratio. The microphone's high RF immunity helps prevent interference with digital wireless systems.
4. Maintenance and Care
The DuraPlex microphone is built for durability, featuring an IP57 rating for dust and water resistance. Proper care will extend its lifespan.
4.1 Cleaning
Wipe the microphone and cable with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials. Ensure the microphone is dry before storage.
4.2 Storage
Store the microphone in its provided carrying case when not in use to protect it from dust and physical damage. The cable's design minimizes memory effect, allowing for easy coiling without kinking.
5. Troubleshooting
If you encounter issues with your DuraPlex microphone, consider the following common troubleshooting steps:
- No Sound:
- Verify that phantom power is enabled on your connected device.
- Check all cable connections to ensure they are secure.
- Confirm the wireless system is properly linked and receiving a signal.
- Distorted Sound:
- Reduce the input gain on your wireless transmitter or mixer to prevent clipping.
- Ensure the microphone capsule is not obstructed or too close to the sound source.
- Interference/Noise:
- While the DuraPlex has high RF immunity, ensure your wireless system is operating on a clear frequency.
- Check for nearby electronic devices that might be causing interference.
- Headset Discomfort:
- Adjust the headset frame and boom for a comfortable and secure fit.
For persistent issues, consult the full user guide available on the Shure website or contact Shure customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Microphone Form Factor | Microphone Only |
| Item dimensions L x W x H | 6.06 x 5.59 x 1.58 inches |
| Power Source | Phantom Power Required |
| Signal-to-Noise Ratio | 78 dB |
| Number of Channels | 1 |
| Manufacturer | Shure |
| UPC | 042406662147 |
| Item Weight | 9.9 ounces |
| Product Dimensions | 6.06 x 5.59 x 1.58 inches |
| Country of Origin | China |
| ASIN | B08K9F22Z2 |
| Item model number | DH5B/O-LM3 |
| Date First Available | October 7, 2020 |
| Color Name | Black |
| Recommended Uses For Product | Singing |
| Brand | Shure |
| Model Name | DH5B/O-LM3 |
| Connectivity Technology | XLR (Note: This refers to the general type of connection for professional audio, but the specific model uses LEMO for wireless systems) |
| Connector Type | LEMO |
| Special Feature | Lightweight |
| Compatible Devices | Headphone (Note: This appears to be an error in the source data, as this product is a microphone.) |
| Color | Black |
| Polar Pattern | Omnidirectional |
7. Warranty Information
For detailed warranty terms and conditions, please refer to the official Shure Warranty document. A PDF version of the warranty is available for download:
8. Support and Additional Resources
For further assistance, product registration, or to explore other Shure products, please visit the official Shure website or their Amazon Brand Store.
