
Shure : BETA-98AMP
Description
The Shure Beta Microphone Series
BETA 98AMP is a precision-engineered miniature cardioid condenser microphone for professional sound reinforcement and studio recording. The BETA98AMP 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).
Features
→ Premier live performance microphone with Shure quality, ruggedness, and reliability→ Uniform cardioid polar pattern for maximum gain before feedback and superior rejection of off-axis sound→ Tailored frequency response shaped for drums and percussion→ Wide dynamic range for use in high SPL environments→ Compact design and integrated preamp reduce stage clutter and ease setup→ Flexible gooseneck for precise placement and easy adjustments→ Enamel coated metal construction and stainless steel inner grille resist wear and abuseSpecifications
Cartridge Type | Electret Condenser |
Polar Pattern | Cardioid |
Frequency Response | 20 to 20,000 Hz |
Output Impedance @ 1 kHz | 150 O |
Sensitivity open circuit voltage, @ 1 kHz, typical | –50.5 dBV/Pa[1] (4 mV) |
Maximum SPL 1 kHz at 1% THD[2] | 2500 O load 157.5 dB; 1000 O load 153 dB |
Signal-to-Noise Ratio[3] | 63 dB |
Dynamic Range @ 1 kHz | 2500 O load 126.5 dB; 1000 O load 122 dB |
Clipping Level 20 Hz to 20 kHz, 1% THD | 2500 O load 12.5 dBV; 1000 O load 7.5 dBV |
Self Noise equivalent SPL, A-weighted, typical | 31 dB SPL-A |
Connector | Three-pin professional audio (XLR), male, balanced |
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.