产品信息 - Shure Beta 87A Vocal Microphone->microphone

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Shure Beta 87A Vocal Microphone

产品分类 :

資訊科技->視聽設備->麥克風

产品规格

Model No: Beta 87A

Country	CN
Brand	shure
Weight	0.8kg
Packing	new and boxed
Minimum Order	5
Payment Term	paypal

产品描述

Shure 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.

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
Legendary Shure quality and reliability

Specifications
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-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)

We have a lot of Brand new shure and Sennheiser microphones, Wired microphone such as SM57, SM58S, SM58LC, Beta57A, Beta58A, Beta87A, beta52a, beta56a, Sennheiser e845s, e845, e822s, e822, e828, e828s; Wireless microphone such as LX88II, EUT24/58, PGX24/SM58, PGX24/Beta58A, SLX4/Beta58A, PGX288/BETA58A, PGX242/BETA58A, SLX24/SM58, Sennheiser EW100, EW3000, EW5000, EW135G2, EW122G2, EW152G2, EW155G2, EW545G2, EW332G2, EW335G2. EW352G2 If you want more, please contact us, we will offer you good price.

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