Shure BETA 98AMP/C

The Shure Beta 98AMP is a precision-engineered miniature cardioid condenser microphone for professional sound reinforcement and studio recording. Features an integrated XLR preamplifier with a flexible gooseneck and the A75M Universal Microphone Mount for accurate placement in any configuration of toms, snares, or percussion. An extremely uniform cardioid polar pattern provides excellent gain-before-feedback, off-axis rejection of unwanted noise, and high maximum sound pressure level (SPL).

Cartridge Type
Electret Condenser

Polar Pattern
Cardioid

Frequency Response
20 to 20,000 Hz

Output Impedance
150

Sensitivity
open circuit voltage, @ 1 kHz, typical ™ 50.5 dBV/Pa[1] (2.5 mV)

Maximum SPL
1 kHz at 1% THD[2]2500 load: 157.5 dB SPL
1000 load: 153 dB SPL

Signal-to-Noise Ratio[3]63 dB

Dynamic Range@ 1 kHz
2500 load: 126.5 dB
1000 load: 122 dB

Clipping Level@ 1 kHz, 1% THD
2500 load: 12.5 dBV
1000 load: 7.5 dBV

Self Noise equivalent SPL, A-weighted, typical
31.0 dB SPL-A

Common Mode Rejection
10 to 100,000 kHz
60 dB

Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

Power Requirements
11™ 52 V DC[4] phantom power (IEC-61938), 5.5 mA

Net Weight
130 g (4.6 oz.)

[1] 1 Pa=94 dB SPL[2] THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL[3] S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted[4] All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.