SHURE BETA 87C
Manual de Usuario

Model BETA 87C� User Guide
APPLICATION AND PLACEMENT
The BETA 87C is ideal for applications where earphone monitor systems such as the Shure PSM® personal monitor systems are used. Tone quality will vary, depending on how close the microphone is to the sound source. Keep in mind that microphone technique is largely a matter of personal taste�-there is no one �correct� microphone position.
SUGGESTED MICROPHONE PLACEMENT Lips less than 15 cm (6 in.) away or touching the windscreen, on axis to microphone. 15 to 60 cm (6 in. to 2 ft.) away from mouth, just above nose height. More than 60 cm (2 ft.) away. TONE QUALITY Robust sound, emphasized bass, maximum isolation from other sources. Reduced bass. Thinner, distant sound; noticeable levels of ambient noise.

General Rules for Microphone Use BETA 87C� Cardioid Condenser Microphone
The Shure BETA 87C is a high output condenser microphone that provides touring professionals with studio-quality sound. Vocalists who use earphone monitor systems such as the Shure PSM® Personal Monitor System will appreciate how effectively the BETA 87C rejects ambient sound from the rear of the microphone. The BETA 87C maintains its cardioid pattern throughout its frequency range, ensuring maximum isolation from other sound sources and high gain before feedback. Its warm, natural sound is the result of an exceptionally smooth frequency response that includes a slight presence rise. A controlled low-frequency roll-off compensates for proximity effect and prevents the �boomy� sound often associated with close-up use. The BETA 87C is an excellent choice for professional studio recording, yet it is built to withstand the rigors of touring. It maintains its performance characteristics even at sound pressure levels as high as 139 dB SPL. Plus, the cartridge is protected by a proven shock mount system. A hardened steel mesh grille with a built-in pop filter provides added protection. 1. Aim the microphone toward the desired sound source and away from unwanted sources. Refer to Figure 1. 2. Place the microphone as close as practical to the desired sound source. For extra bass response, work close to the microphone. Refer to the table above. 3. Use only one microphone for each sound source. 4. Keep the distance between microphones at least three times the distance from each source to its microphone. 5. Place microphones as far as possible from reflective surfaces. 6. Use the fewest number of microphones as is practical. 7. Add a windscreen when using the microphone outdoors. 8. Avoid excessive handling to minimize pick up of mechanical noise and vibration. 9. Do not cover any part of the grille with your hand.
STAGE MONITOR P.A. LOUDSPEAKERS

90°

180°
MICROPHONE

0°
SOUND SOURCE

Features:
� Smooth, wide frequency response with slight presence rise � Cardioid polar pattern for maximum isolation � Minimal off-axis tone coloration � Superior gain before feedback Low-frequency roll-off compensates for proximity effect Wide dynamic range (117 dB) Low distortion characteristics Very low susceptibility to RFI and electromagnetic hum Advanced cartridge shock-mount system absorbs mechanical shocks and reduces handling noise � Built-in pop filter reduces wind and breath sounds � Shure ruggedness and reliability for years of trouble-free performance � � � � �

90°

CARDIOID MICROPHONE POSITIONING FIGURE 1

OPERATION
Power
The BETA 87C requires phantom power. This may be supplied to the microphone from an external power supply (such as the Shure model PS1A) or directly from preamplifiers, mixers, or consoles with built-in phantom power. Suitable sources should provide 11 to 52 Vdc phantom voltage.

©2006, Shure Incorporated 27C3109 (Rev. 4)

Printed in U.S.A.