Specifications - Shure BETA series Handbuch

10
Specification
Type
Frequency Response
Polar Pattern
Output Noise (equivalent dB
SPL, A-weighted)
Signal-to-Noise Ratio
Recommended Minimum Input
Impedance
Preamp Output Impedance
Output Level, open circuit, ref.
1v/Pa at 1 kHz
Maximum Sound Pressure
Level
Dynamic Range
Current Drain
Output Polarity
Positive pressure on the
diaphragm produces a positive
voltage at:
Power Requirements
Net Weight
Cable

Specifications

BETA 53
Wired
Condenser (electret bias)
20Hz to 20KHz (see page 61)
Omnidirectional (see page 61)
39.0 dB typical; 42.0 dB maximum
55 dB at 94 dB SPL
>1 kΩ 20 kΩ
136Ω
-50.0 ± 3.0dB -54.0 ± 3.0dB
3.16mV 2.0mV
147 dB SPL at 1% THD/1 kΩ load 142 dB SPL at 1% THD/20 kΩ load
108 dB (max. SPL with 1k load, minus 103 dB (max. SPL with 20k load,
typical A-wt. noise) minus typical A-wt. noise)
4.6 mA (preamp and microphone) 60-130 µA (microphone only)
Pin 2 relative to pin 3 at the output Pin 3 (black lead) relative to pin 1
connector of the preamp (shield lead) at the output connector
of the microphone
Phantom power; 11 to 52 Vdc positive +5 Vdc on pin 2, return on pin 1 (ground) Phantom power; 11 to 52 Vdc positive
on pins 2 and 3, return on pin 1 (ground)
135.35 g (4.75 oz.) 35.35 g (1.25 oz.)
microphone and in-line preamp microphone only
1.5 m (5 ft.), small-diameter, shielded, with mini 4-pin connector (TA4F)
Wireless Wired
Condenser (electret bias)
50Hz to 20KHz (see page 61)
Supercardioid (see page 61)
39.0 dB typical; 42.0 dB maximum
55.0 dB at 94 dB SPL
>1 kΩ
136Ω
-52.0 ± 3.0dB
2.51mV
149 dB SPL at 1% THD/1 kΩ load
110 dB (max. SPL with 1k load, minus
typical A-wt. noise)
4.6 mA (preamp and microphone)
Pin 2 relative to pin 3 at the output
connector of the preamp
on pins 2 and 3, return on pin 1 (ground)
135.35 g (4.75 oz.)
microphone and in-line preamp
BETA 54
Wireless
20 kΩ
-56.0 ± 3.0dB
1.58mV
144 dB SPL at 1% THD/20 kΩ load
105 dB (max. SPL with 20k load,
minus typical A-wt. noise)
60-130 µA (microphone only)
Pin 3 (black lead) relative to pin 1
(shield lead) at the output connector
of the microphone
+5 Vdc on pin 2, return on pin 1 (ground)
35.35 g (1.25 oz.)
microphone only