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Miniature Cardioid Condenser Microphone
The Shure Beta Microphone Series
BETA 98A is a precision-engineered compact, high-output miniature condenser microphone for professional sound reinforcement and studio recording. An extremely uniform cardioid polar pattern provides excellent gain-before-feedback and off-axis rejection of unwanted noise.
Both BETA98A configurations feature high sound pressure level capability (SPL). Beta 98AD/C includes A98D drum mount with flexible gooseneck that makes it an essential, accurate choice for toms, snares, and percussion. Beta 98A/C is recommended for a variety of acoustic or amplified instruments including drums, piano, reed, wind, and strings.
→ Premier live performance microphone with Shure quality, ruggedness, and reliability→ Uniform half-cardioid polar pattern (in the hemisphere above mounting surface) for maximum gain before feedback and rejection of off-axis sound→ Tailored frequency response for kick drums and bass-heavy instruments→ Wide dynamic range for use in high SPL environments→ Two-position contour switch enhances attack and clarity→ Integrated preamp and XLR connector reduce stage clutter and provide a quick, secure setup→ Low profile design requires no external mounting hardware→ Steel grille and die-cast metal construction resist wear and abuse→ Exceptional low-frequency reproduction→ Extremely high SPL handling→ High output level→ No crossover distortion
 1 Pa=94 dB SPL THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.
| Cartridge Type|| Electret Condenser|
| Polar Pattern|| Cardioid|
| Frequency Response|| 20 to 20,000 Hz|
| Output Impedance @ 1 kHz|| 179 O|
| Sensitivity open circuit voltage, @ 1 kHz, typical|| 48 dBV/Pa (4 mV)|
| Maximum SPL 1 kHz at 1% THD|| 2500 O load 150.5 dB; 1000 O load 144 dB|
| Signal-to-Noise Ratio|| 64 dB|
| Dynamic Range @ 1 kHz|| 2500 O load 120.5 dB; 1000 O load 114 dB|
| Clipping Level 20 Hz to 20 kHz, 1% THD|| 2500 O load 8.0 dBV; 1000 O load 1.0 dBV|
| Self Noise equivalent SPL, A-weighted, typical|| 30 dB SPL-A|
| Connector|| Three-pin professional audio (XLR), male, balanced|
| Polarity|| Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3|
| Power Requirements|| 1152 V DC phantom power (IEC-61938), 3.6 mA|
| Net Weight|| 12 g (0.6 oz.)|
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Audio Video Supply Inc.
4575 Ruffner St
San Diego, CA 92111
Prices and specifications subject to change without notice.