Shure MX391 User Guide

Shure MX391 Microphone manual cover
Pages 7
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Shure MX391 Microphone Specification

The Shure MX391 Microphone is a high-quality boundary microphone designed for professional audio applications, including conferences, boardrooms, and broadcast environments. It features a compact and low-profile design that allows for discreet placement on tables, ceilings, or walls, ensuring minimal visual distraction while capturing superior sound quality. The MX391 employs a condenser cartridge with a cardioid, omnidirectional, or supercardioid polar pattern, providing versatile options tailored to specific acoustic environments and directional needs. It operates with a wide frequency response range from 50 Hz to 17 kHz, enabling it to capture detailed and natural sound reproduction across various vocal and instrumental sources.

The microphone is equipped with a programmable membrane switch that can be configured for push-to-talk, push-to-mute, or push-on/push-off modes, offering flexible control options for users. Additionally, it includes an LED indicator to display the microphone's status, enhancing usability during live sessions or recordings. The MX391 is designed with a balanced, transformerless output for enhanced immunity to electromagnetic interference and noise, ensuring clean audio signals. It requires phantom power ranging from 11 to 52 V DC for optimal operation.

Constructed with durability in mind, the MX391 is housed in a rugged, high-impact case that withstands the demands of professional use. It comes with a 12-foot cable, allowing ample length for varied installation configurations. The Shure MX391 Microphone combines functionality, reliability, and superior audio performance, making it an ideal choice for environments demanding high-quality sound capture and minimal visual impact.

Shure MX391 Microphone F.A.Q.

How do I properly set up the Shure MX391 Microphone for optimal sound quality?

To set up the Shure MX391 Microphone, ensure it is placed on a stable surface. Connect it to a compatible preamp or mixer using the supplied XLR cable. Adjust the gain settings on your mixer to avoid distortion. Position the microphone towards the sound source and away from noise sources for optimal sound quality.

What should I do if my Shure MX391 Microphone is not picking up sound?

First, check all connections to ensure they are secure. Verify that the power supply (phantom power) to the microphone is active. Try using a different cable or input channel to isolate the issue. If the problem persists, consider testing the microphone with a different audio device.

How can I reduce feedback when using the Shure MX391 Microphone?

To reduce feedback, position the microphone away from speakers and other sound sources. Lower the gain on your mixer and use directional speakers aimed away from the microphone. Consider using a feedback suppression device or software if feedback continues to be an issue.

What maintenance steps should I follow for the Shure MX391 Microphone?

Regularly clean the microphone grille with a soft cloth to remove dust and debris. Store the microphone in a dry, cool place when not in use. Periodically check cables and connectors for wear and tear, replacing them as necessary.

Can the Shure MX391 Microphone be used for outdoor events?

Yes, the Shure MX391 can be used outdoors, but it is essential to protect it from extreme weather conditions. Use a windscreen to reduce wind noise and ensure the microphone is shielded from moisture.

What is the polar pattern of the Shure MX391 Microphone, and how does it affect usage?

The Shure MX391 offers cardioid, omnidirectional, and supercardioid polar patterns. The cardioid pattern is ideal for single sound sources, reducing ambient noise. Omnidirectional captures sound from all directions, suitable for group settings, while supercardioid provides a tighter pickup, minimizing background noise further.

Is it possible to integrate the Shure MX391 Microphone with a wireless system?

Yes, the Shure MX391 can be integrated with a wireless system using a compatible wireless transmitter pack. Ensure the transmitter supports phantom power or use an external phantom power supply.

How do I troubleshoot unusual noise interference with the Shure MX391 Microphone?

Check for interference from nearby electronic devices and move them away if possible. Inspect cables for damage and replace if necessary. Ensure proper grounding of all audio equipment to reduce electromagnetic interference.

What accessories are recommended for enhancing the performance of the Shure MX391 Microphone?

Consider using a windscreen to minimize wind noise and a shock mount to reduce vibrations. A high-quality XLR cable can improve signal integrity. Additionally, a portable preamp can enhance audio quality for specific applications.

How can I extend the lifespan of my Shure MX391 Microphone?

Handle the microphone with care, avoiding drops or impacts. Regularly clean and store it properly when not in use. Ensure all connections are secure to prevent wear on connectors. Use appropriate accessories to protect it during use and transit.