Shure BETA 98AMP - Specifications; Load Impedance and Power Requirements; Technical Specifications; Accessories and Parts

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Accessories and Parts
Furnished Accessories
Universal Microphone Mount A75M
A75M Small Mic Clip A75-57F
Zippered Carrying Bag 95A2314
Snap-fit Windscreen 95A2064
SPECIFICATIONS
Optional Accessories
Snap-Fit Windscreen (4 per package) RK183WS
Metal Locking Windscreen A412MWS
Mic Clip A57F
7.6 m (25 ft.) Cable C25E
A75M Large Mic Clip A75-25D
A75M Universal Microphone Adapter A75-UMA
Shock Stopper™ Isolation Mount A53M
Power Requirements
This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-
61938). However, it will operate with slightly decreased headroom and sensitivity with
supplies as low as 11 Vdc.
Most modern mixers provide phantom power. You must use a balanced microphone
cable: XLR-to-XLR or XLR-to-TRS.
Load Impedance
Maximum SPL capability, output clipping level, and dynamic range vary with the input
load impedance of the preamplifier to which you connect the microphone. Shure recom-
mendsaminimuminputloadimpedanceof1000Ω.Mostmodernmicrophonepreampli-
fiers meet this requirement. Higher impedance results in better performance for these
specifications.
Replacement Parts
Cardioid Cartridge RPM98A/C
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive 2004/108/EC. Meets
Harmonized Standards EN55103-1:1996 and EN55103-2:1996, for residential (E1) and
light industrial (E2) environments.
The Declaration of Conformity can be obtained from:
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Wannenacker Str. 28
D-74078 Heilbronn, Germany
Phone: +49 7131 72 14 0
Fax: +49 7131 72 14 14
Email: EMEAsupport@shure.de
Cartridge Type Electret Condenser
Polar Pattern Cardioid
Frequency Response 20 to 20,000 Hz
Output Impedance 150Ω
Sensitivity
open circuit voltage, @ 1 kHz, typical
–50.5 dBV/Pa
[1]
(2.5 mV)
Maximum SPL
1 kHz at 1% THD
[2]
2500Ωload: 157.5 dB SPL
1000Ωload: 153.0 dB SPL
Signal-to-Noise Ratio
[3]
63 dB
Dynamic Range
@ 1 kHz
2500Ωload: 126.5 dB
1000Ωload: 122.0 dB
Clipping Level
@ 1 kHz, 1% THD
2500Ωload: 12.5 dBV
1000Ω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.
Note: Information in this guide is subject to change without notice. For the additional
information about this product, please visit www.shure.com.