Shure Beta 87A

Features:

- Smooth frequency response with gradual presence rise
- Highly consistent supercardioid polar pattern provides superior gain-before-feedback
- Electronic low-frequency roll-off compensates for proximity effect
- Wide dynamic range (117 dB) and 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 undesirable wind and breath sounds
- Reliability for years of trouble-free performance

Specification:

Cartridge Type:
Condenser (electret bias)

Frequency Response:
50 to 20,000 Hz

Polar Pattern:
Supercardioid

Output Impedance:
Rated at 150 ohms (100 ohms actual +/- 20%)
Recommended minimum load impedance: 800 ohms

Sensitivity (at 1,000 Hz)
Open Circuit Voltage -52.5 dBV/Pa (2 mV)
(1 Pa = 94 dB SPL)

Clipping Level (at 1,000 Hz)
1000 ohm Load: -6 dBV (0.5 V)

Maximum SPL (at 1,000 Hz)
140.5 dB (0.25% THD, 1000 ohm load)

Self-Noise:
(equivalent sound pressure level; measured with true rms voltmeter)
23.5 dB typical, A-weighted
25.5 dB typical, weighted per DIN 45 405

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

Signal-to-Noise Ratio:
70.5 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

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

Dimensions:
See Uder Guide

Net Weight:
207 grams (7.6 oz)

- Weight: 0.390kg