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Accessories and parts, Specifications, Power requirements – Shure BETA 98AMP User Manual

Page 4: Load impedance, Furnished accessories, Optional accessories, Replacement parts, Certification

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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

Mic Clip

A57F

Metal Locking Windscreen

A412MWS

7.6 m (25 ft.) Cable

C25E

A75M Large Mic Clip

A75-25D

A75M Universal Microphone Adapter

A75-UMA

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: [email protected]

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.

This manual is related to the following products: