Contents

The Shure Model LMP1A is a multi-purpose level-matching preamplifier designed for two-way radio communication applications. The LMP1A allows Shure dynamic communication microphones to be used with many popular two-way radios and remote control devices.
The LMP1A can operate on biased audio supplied by the radio or 12 Vdc provided by an external power supply. Its output can be adjusted to match the inputs of many two-way radios.
1. Remove the screws that secure the LMP1A cover to the chassis and lift the cover away.
2. Refer to Figure 1 and connect a dynamic microphone, such as a Shure Model 515, to LMP1A input terminals as follows:
3. Connect LMP1A output terminals to the radio input as follows:
4. Reinstall the LMP1A top cover.
1. Remove the screws that secure the LMP1A cover to the chassis and lift the cover away.
2. Refer to Figure 2 and connect a dynamic micorphone, such as a Shure Model 515, to the LMP1A input terminal as follows:
3. Connect the LMP1A output terminal to the radio input as follows:
4. Connect the LMP1A external dc bias terminal to the positive terminal of the radio power supply.
5. Connect the LMP1A ground terminal to the negative terminal of the radio power supply.
6. Reinstall the LMP1A top cover.
1. Remove the screws that secure the LMP1A cover to the chassis and lift the cover away.
2. Refer to Figure 3. Using a screwdriver, rotate potentiometer R5 clockwise to increase gain. The LMP1A provides 20 dB of gain when potentiometer R5 is in the maximum (full clockwise) position. To decrease gain, rotate potentiometer R5 counterclockwise.
Open Circuitry Gain
Power Requirements
Current Drain
Case
Dimensions
Net Weight
Certification

Shure LMP1A User Guide

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Shure LMP1A Microphone Specification

The Shure LMP1A Microphone is a premium audio solution designed for professional settings, offering exceptional sound clarity and durability. Engineered for versatility, this microphone is ideal for live performances, studio recordings, and broadcast applications. It features a dynamic cardioid pickup pattern that effectively isolates the main sound source while minimizing background noise, ensuring high-quality audio capture even in challenging environments.

The LMP1A boasts a frequency response range of 50 Hz to 15 kHz, providing a balanced and natural sound reproduction suitable for a variety of vocal and instrumental applications. Its rugged metal construction is built to withstand the rigors of frequent use, making it a reliable choice for both touring musicians and studio professionals. The microphone includes an integrated pneumatic shock mount system, which significantly reduces handling noise, enhancing its performance in live settings.

Connectivity is facilitated via a standard XLR output, ensuring compatibility with a wide range of audio equipment. The microphone also features an internal pop filter to minimize plosive sounds, contributing to clearer vocal recordings. Its ergonomic design ensures comfortable handling, while the lightweight build aids in easy transport and setup.

Overall, the Shure LMP1A Microphone combines superior sound quality with robust construction, making it a versatile and dependable tool for any audio professional. Whether used for capturing the nuances of a studio performance or delivering clear audio in a live setting, the LMP1A stands out as a top-tier microphone choice. With its advanced features and reliable performance, it supports seamless audio experiences across various applications.

Shure LMP1A Microphone F.A.Q.

How do I properly set up the Shure LMP1A Microphone for optimal performance?

To set up the Shure LMP1A, connect the microphone to a compatible input using an XLR cable, ensure phantom power is enabled if required, and position the microphone at an appropriate distance from the sound source. Adjust input gain on your mixer or audio interface to avoid clipping while ensuring a strong signal.

What should I do if my Shure LMP1A Microphone is not picking up sound?

First, check all cable connections and ensure the microphone is securely connected. Verify that phantom power is enabled if necessary. Test the microphone with a different cable or input to rule out hardware issues. If the problem persists, consult the user manual or contact Shure support.

How can I reduce background noise when using the Shure LMP1A Microphone?

To reduce background noise, use a pop filter and position the microphone closer to the sound source. Utilize noise gates or high-pass filters in your audio processing chain and ensure the recording environment is acoustically treated to minimize reflections and external noise.

What maintenance steps should I take to ensure the longevity of my Shure LMP1A Microphone?

Regularly clean the microphone grille with a soft brush or cloth, and store the microphone in a dry, dust-free environment. Avoid exposure to moisture and handle the microphone with care to prevent damage. Periodically check cables and connectors for wear and tear.

Can the Shure LMP1A be used for outdoor recordings?

Yes, the Shure LMP1A can be used outdoors, but it is recommended to use a windscreen or windshield to minimize wind noise. Ensure the microphone is protected from moisture and extreme temperatures, and consider using a shock mount to reduce handling noise.

What should I do if my Shure LMP1A Microphone is distorting at high volumes?

Reduce the input gain on your mixer or audio interface to prevent the signal from clipping. Ensure the microphone is not too close to the sound source. Use an attenuator pad if available, and check for any issues with the cables or connections.

How do I clean the Shure LMP1A Microphone without damaging it?

Use a soft, dry cloth to gently wipe the microphone's exterior. For the grille, use a soft brush to remove dust or debris. Do not use water or cleaning solvents. If necessary, lightly dampen the cloth with water, but ensure no moisture enters the microphone.

Is it necessary to use phantom power with the Shure LMP1A Microphone?

The necessity of phantom power depends on the specific model and configuration of the Shure LMP1A. Check the microphone's specifications in the user manual to determine if phantom power is required. If needed, enable phantom power on your audio interface or mixer.

What is the best way to position the Shure LMP1A for vocal recording?

Position the microphone at approximately 6 to 12 inches from the vocalist's mouth, slightly off-axis to reduce plosive sounds. Use a pop filter to minimize plosives and sibilance, and adjust the angle for optimal sound capture and tonal balance.

How can I troubleshoot connectivity issues with the Shure LMP1A Microphone?

Check all cable connections, ensuring they are secure and undamaged. Test the microphone with different cables and inputs to isolate the problem. Verify that the audio interface or mixer is functioning correctly, and update or reinstall drivers if necessary.