Shure BETA 87C - Vocal Microphone

Features:

• Smooth, wide frequency response with slight presence rise

• Uniform cardioid polar pattern for maximum isolation

• Minimum off-axis tone coloration

• Low-frequency roll-off compensates for proximity effect

• Three-stage pop filter minimizes breath pop and noise

• Break-resistant stand adapter

• Frequency response: 50 - 20,000 Hz

Specifications:

Transducer Type

Condenser (electret bias)

Frequency Response

50 to 20,000 Hz

Polar Pattern

Cardioid

Output Impedance

Rated at 150 ohms (100 Ohms actual +/- 20%)

Recommended minimum load impedance: 800 ohms

Sensitivity (at 1,000 Hz)

Open Circuit Voltage: -51 dBV/Pa (2 mV)

(1 Pa = 94 dB SPL)

Output Clipping Level

1000 Ohm Load at 1,000 Hz: -6 dBV (0.5 V)

Maximum SPL

139 dB at 1,000 Hz (0.25% THD, 1000 Ohm load)

Self-Noise

22 dB typical, A-weighted

24 dB typical, weighted per DIN 45 405

(equivalent sound pressure level; measured with true rms voltmeter)

Dynamic Range

117 dB (maximum SPL to A-weighted noise level)

Hum Sensitivity

-5 dB equivalent SPL, maximum, in a 1 mOe field (60 Hz)

Signal-to-Noise Ratio

72 dB at 94 dB SPL (IEC 651)*

*S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.

Polarity

Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the output connector.

Power

Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3

Current Drain: 1.0 to 1.2 mA

Connector

Three-pin (XLR) professional audio

Case

Aluminum construction with painted blue metallic finish, and hardened steel grille with nickel satin chrome plating

Dimensions

See User Guide

Net Weight

Net: 207 grams (7.6 oz)

Packaged: 565 grams (1.24 lbs)

Environmental Conditions

Operating: -18 degrees to 60 degrees C (0 degrees to 135 degrees F)(relative humidity <90%)

Storage: -29 degrees to 74 degrees C (-20 degrees to 165 degrees F) (relative humidity <80%)

UPC: 042406074278