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Shure BETA27 Mode D'emploi page 7

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Maximum SPL
(1 kHz at 1% THD)
PAD ON
PAD OFF
Signal-To-Noise Ratio
(Ref. 94 dB SPL at 1 kHz)
86 dB[2]
Dynamic Range
(at 1 kHz)
1000 Ω load
2500 Ω load
Common Mode Rejection
(10 Hz to 10 kHz)
>50  dB
Clipping Level
(20 Hz to 20 kHz, at 1% THD)
1000 Ω load
2500 Ω load
Attenuator Switch
0, -15dB
Low-Frequency Filter Switch
Flat, –6 dB/octave below 115 Hz, or –18 dB/octave below 80 Hz
Self Noise
(typical, equivalent SPL, A-weighted)
8.5 dB SPL­A
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Weight
428 g( 15 oz.. )
Connector
Three-pin professional audio (XLR), male, balanced
Power Requirements
11 to 52 V DC[4]phantom power, 6 mA
1000 Ω load
2500 Ω load
1000 Ω load
2500 Ω load
148  dB SPL
154  dB SPL
134  dB SPL
140  dB SPL
126 dB
132 dB
2.0 dBV
8.5 dBV[3]
Shure Incorporated
7/10

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