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Summary of Contents for Shure BETA91A
- Page 1 BETA91A Half-Cardioid Condenser Microphone The Shure half-cardioid electret condenser microphone, BETA91A, user guide. Version: 3.1 (2021-B)
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Page 2: Table Of Contents
Shure Incorporated Table of Contents Contour Switch BETA91A Half-Cardioid Condenser Microphone Load Impedance General Description Power Requirements Features Accessories Applications Furnished Accessories General Rules for Use Optional Accessories Applications and Placement Replacement Parts Mounting the Microphone Specifications Half-cardioid Polar Pattern... -
Page 3: Beta91A Half-Cardioid Condenser Microphone
Half-Cardioid Condenser Microphone General Description The Shure Beta 91A is designed for use with kick drums, piano and other traditional low frequency applications. Tailored for bass-heavy environments, this microphone features a powerful low frequency response and integrated preamplifier and XLR connection for easy setup and minimal stage clutter. -
Page 4: Mounting The Microphone
Shure Incorporated Application Suggested Microphone Placement Tone Quality Inside drum, on a pillow or other cushioning surface, 25 Full, natural sound. to 152 mm (1 to 6 in.) from beater head. Kick Drum Contour switch activated; 25 to 152 mm (1 to 6 in.) Sharp attack;... -
Page 5: Load Impedance
Shure Incorporated Contour Switch A two-position switch on the bottom of the microphone lets you selectively filter the low-mid frequency response without addi- tional tools. Use this filter to enhance the attack and clarity of bass-heavy instruments. Flat response: Provides the most natural sound in most applications. Low-Mid Scoop: This setting tailors the microphone’s frequency response to provide a strong ‘punch’ in the low frequencies, and plenty of attack in the higher frequencies. Load Impedance Maximum SPL capability, output clipping level, and dynamic range vary with the input load impedance of the preamplifier to which you connect the microphone. Shure recommends a minimum input load impedance of 1000 Ω. Most modern microphone ... -
Page 6: Optional Accessories
Shure Incorporated Optional Accessories ® 25 foot (7.5m) Triple-Flex Microphone XLR Cable with Switchcraft connectors C25E Replacement Parts Cardioid Cartridge RPM98A/C Specifications Type Electret Condenser Frequency Response 20 to 20,000 Hz Polar Pattern Half-cardioid (cardioid in hemisphere above mounting surface) Output Impedance 150 Ω... - Page 7 Shure Incorporated Self Noise equivalent SPL, A-weighted, typical 29.5 dB SPL-A Common Mode Rejection (20 Hz to 200 kHz) ≥55 dB Frequency Contour Switch 7 dB of attenuation centered at 400 Hz Power Requirements 11–52 V DC phantom power , 5.4 mA Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 Weight 470 g(16.6 oz.)
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Page 8: Certifications
Shure Incorporated Certifications This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking. The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance Authorized European representative: Shure Europe GmbH Headquarters Europe, Middle East & Africa Department: EMEA Approval Jakob-Dieffenbacher-Str.
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