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SHURE BETA 87 A

SHURE BETA 87 A


Proizvođač: SHURE BETA 87 A
Dostupnost: Nema na stanju
Šifra Proizvoda: 50200
Prikazana cena je za komad.

  Beta 87A Vocal Microphone The Shure Beta 87A is a premium quality supercardioid hand-held electret condenser vocal microphone with exceptionally smooth frequency response and high sound pressure level capability. Used for professional sound reinforcement, broadcasting, and studio recording applications, the Beta 87A combines superb performance with the ruggedness needed for touring and field production.   The Beta 87A features a controlled low-frequency roll-off that compensates for proximity effect and prevents the “boomy” sound often associated with close pick-up. The characteristic Shure presence rise brightens the upper midrange. The tight supercardioid pattern, with null points at approximately 125 degrees, provides maximum isolation from other vocalists or instruments while offering minimal off-axis coloration. The Beta 87A operates on phantom power. 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 Legendary Shure quality and reliability Cartridge Type Condenser (electret bias)  Frequency Response 50 to 20,000 Hz   view larger   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-weighted25.5 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 3Current 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 User Guide  Net Weight 207 grams (7.6 oz)


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Beta 87A Vocal Microphone

The Shure Beta 87A is a premium quality supercardioid hand-held electret condenser vocal microphone with exceptionally smooth frequency response and high sound pressure level capability. Used for professional sound reinforcement, broadcasting, and studio recording applications, the Beta 87A combines superb performance with the ruggedness needed for touring and field production.

 

The Beta 87A features a controlled low-frequency roll-off that compensates for proximity effect and prevents the “boomy” sound often associated with close pick-up. The characteristic Shure presence rise brightens the upper midrange. The tight supercardioid pattern, with null points at approximately 125 degrees, provides maximum isolation from other vocalists or instruments while offering minimal off-axis coloration. The Beta 87A operates on phantom power.

  • 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
  • Legendary Shure quality and reliability
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 User Guide
 
Net Weight
207 grams (7.6 oz)



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