Audio Input
Connector Type
XLR
See drawing for details
Maximum Input Level
Pad -12 dB
0 dB
Boost +12 dB
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
SBC203
20.5 dBV
8.5 dBV
-3.5 dBV
220 mA
625 mA (normal), 250 mA (reduced)*
Shure Incorporated
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