Gear Hunter

Shure - SM87A

Description

The Shure SM87A microphone is a professional-quality, handheld condenser microphone for use in sound reinforcement, broadcasting, and studio recording installations. Its supercardioid polar pattern provides greater rejection of unwanted sound sources, making it ideal for miking individual instruments in a multi-microphone setting or for miking single sources in a reverberant or noisy environment. An integral three-stage wind and pop filter protects against wind and breath noise. Its built-in shock mount reduces stand and handling noise.

Features
* Highly directional supercardioid pickup pattern
* Controlled low-frequency roll-off
* Very low RF and magnetic hum susceptibility
* Minimally affected by varying load impedance
* Built-in wind and pop filter
* Transducer element shock mounted
* Field-usable over a wide range of temperature and humidity conditions
* Accepts a wide variety of phantom power sources, including DIN 45 596 voltages of 11 and 52 Vdc

Specifications
Type: Condenser
Frequency Response: 50 to 20,000 Hz
Polar Pattern: Supercardioid
Sensitivity (at 1,000 Hz): Open circuit voltage: 52.5 dBV/Pa (2.4 mV) (1 Pa = 94 dB SPL)
Impedance: Rated at 150 Ω (100 Ω actual +/-20%)
Recommended minimum load impedance: 800 Ω
Output Clipping Level: 1000 Ω Load at 1,000 Hz: 6 dBV (0.5 V)
Maximum SPL (at 1,000 Hz): 140.5 dB (0.25% THD, 1000 Ω load)
Self-Noise: 24 dB typical, A-weighted
26 dB typical, weighted per DIN 45 405
Dynamic Range (1000 Ω): 116.5 dB (maximum SPL to A-weighted noise level)
Signal-to-Noise Ratio: 70 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 Requirements: 11 to 52 vdc, 1.2 mA
Case: Aluminum construction with steel grille and satin black finish
Connector: Three-pin professional audio connector (male XLR type)
Weight: 200 g
Dimensions: 192 mm x 50 mm (7.6" x 2")