Shure BETA91A User Guide

Shure BETA91A Microphone manual cover
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Shure BETA91A Microphone Specification

The Shure BETA91A is a premium condenser microphone designed for exceptional audio performance, particularly in kick drum and low-frequency applications. It features a half-cardioid polar pattern that delivers a focused, directional pick-up, minimizing off-axis noise and feedback. The microphone is equipped with a tailored frequency response that enhances attack and punch, making it ideal for capturing the nuanced dynamics of bass-heavy instruments.

The BETA91A includes an integrated preamplifier and an XLR connector, simplifying the setup process and ensuring a clean, strong signal path. It operates on phantom power, with a wide frequency range from 20 Hz to 20 kHz, providing versatility and detail across various audio sources. The microphone's maximum sound pressure level (SPL) of 155 dB ensures it can handle high-volume environments without distortion, maintaining the integrity of the sound even under demanding conditions.

The design features a low-profile, flat construction, which is optimized for easy placement inside kick drums or on other flat surfaces. It also includes a two-position contour switch that allows users to tailor the low-frequency response, offering a choice between a flat response or a low-mid scoop for enhanced clarity and definition. The robust build quality, typical of Shure products, ensures durability and reliability on the road or in the studio.

Overall, the Shure BETA91A is engineered for professional audio applications, providing a combination of precision, versatility, and durability, making it a preferred choice for musicians and sound engineers who require high-quality sound reproduction in demanding acoustic environments.

Shure BETA91A Microphone F.A.Q.

How do I set up my Shure BETA91A microphone for optimal sound capture on a kick drum?

Place the BETA91A inside the kick drum, around 2-4 inches from the beater head for a punchy sound, or further away for a more resonant tone. Adjust the position according to the desired sound.

What is the best way to connect the Shure BETA91A to a mixer?

Use a high-quality XLR cable to connect the BETA91A to an available input on your mixer. Ensure the phantom power is enabled on the mixer as the BETA91A requires it to operate.

How can I reduce unwanted noise when using the Shure BETA91A?

Ensure that the microphone is placed securely and away from any vibrating parts. Use the built-in low-frequency roll-off switch to minimize low-end rumble and mechanical noise.

What maintenance is required for the Shure BETA91A microphone?

Keep the microphone clean and free from dust. Use a soft, dry cloth to wipe the surface. Store it in a protective case or pouch when not in use to prevent damage.

Can the Shure BETA91A be used for instruments other than kick drums?

Yes, while it is optimized for kick drums, the BETA91A can also be used for other low-frequency instruments like pianos or bass cabinets, depending on the desired tonal quality.

How do I troubleshoot if the Shure BETA91A is not picking up sound?

Check the XLR cable and connections for any damage or loose connections. Ensure that phantom power is activated on your audio interface or mixer.

What frequency response does the Shure BETA91A offer?

The Shure BETA91A offers a frequency response of 20 Hz to 20 kHz, tailored for kick drum and low-frequency instruments.

How can I prevent feedback when using the Shure BETA91A in a live setting?

Position the microphone away from monitors and speakers, and use the low-frequency roll-off switch to cut unnecessary low-end frequencies that may cause feedback.

What type of polar pattern does the Shure BETA91A have?

The Shure BETA91A features a half-cardioid polar pattern, which is ideal for capturing sound from the front while rejecting noise from the rear.

How should I position the Shure BETA91A for recording a piano?

Place the BETA91A on a soft cloth inside the piano, either on the soundboard or a flat surface near the strings, adjusting for the best sound capture of the low-frequency notes.