Shure Incorporated
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Audio Input
Connector Type
XLR
See drawing for details
Maximum Input Level
Pad -12 dB 20.5 dBV
0 dB 8.5 dBV
Boost +12 dB -3.5 dBV
1 kHz at 1% THD
Note: Dependent on microphone type
Phantom Power
+48 V(7 mA maximum), +12 V(15 mA maximum)
RF Output
Antenna Type
Dipole
Occupied Bandwidth
<200 kHz
Modulation Type
Shure proprietary digital
Power
1 mW / 10 mW / 30 mW
See Frequency Range and Output Power table, varies by region
Specific Absorption Rate (SAR)
< 0.17 W/kg
SB903 Rechargeable Battery
Charge Voltage
4.2 V (±0.03 V)
Charge Current
SBC10-903 220 mA
SBC203 625 mA (normal), 250 mA (reduced)*
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