Shure Beta 98A manual Specifications, Certification

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 recommends a minimum input load impedance of 1000

Ω.Most modern microphone preamplifiers meet this requirement. Higher impedance results in better performance for these specifications.

Power Requirements

This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased head- room and sensitivity with supplies as low as 11 Vdc.

Most modern mixers provide phantom power. You must use a balanced mi- crophone cable: XLR-to-XLR or XLR-to-TRS.

SPECIFICATIONS

Cartridge Type	Electret Condenser
Polar Pattern	Cardioid
Frequency Response	20 to 20,000 Hz
Output Impedance	179 Ω
@ 1 kHz
Sensitivity	–48.0 dBV/Pa[1] (4.0 mV)
open circuit voltage, @ 1 kHz,
typical

Accessories and Parts

Furnished Accessories

Zippered Carrying Bag	95A2314
In-Line Preamplifier (1 piece)	RPM626
Snap-fit Windscreen	95A2064
Shock-Mount Swivel Adapter (BETA 98A/C)	RK282
7.6 m (25 ft.) light-weight cable (BETA 98A/C)	95A2398
Beta 98 Drum Mount (BETA 98AD/C)	A98D
4.6 m (15 ft.) Heavy-Duty Cable (BETA 98AD/C)	C98D

Optional Accessories

Metal Locking Windscreen	A412MWS
Universal Microphone Mount	A75M

Replacement Parts

Cardioid Cartridge	RPM98A/C
98A Replacement Housing	RPM98A-HT
Clamp Assembly (A98D)	RPM618
Snap-Fit Windscreen (4 per package)	RK183WS

Maximum SPL	2500 Ω load	150.5 dB
1 kHz at 1% THD[2]	1000 Ω load	144.0 dB
Signal-to-Noise Ratio[3]	64 dB
Dynamic Range	2500 Ω load	120.5 dB
@ 1 kHz	1000 Ω load	114.0 dB
Clipping Level	2500 Ω load	8.0 dBV
20 Hz to 20 kHz, 1% THD	1000 Ω load	1.0 dBV
Self Noise	30.0 dB SPL-A
equivalent SPL, A-weighted,
typical
Connector	Three-pin professional audio (XLR),
	male, balanced
Polarity	Positive pressure on diaphragm pro-
	duces positive voltage on pin 2 with
	respect to pin 3

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

Power Requirements	11–52 V DC[4] phantom power (IEC-
	61938), 3.6 mA

Net Weight 12 g (0.6 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.

								Wiring Diagram
Cartridge			Cable	2 =	Bias		TA4F	TA4M		2 =	Preamplifier
G							2	2			Bias
FET	D
	S	FI		3 =	to source	3	4	4	3	3 =	to source
				1 =	Ground		1	1		1 =	Ground

2	1	2
3		3
1