190.5 mm
SPECIFICATIONS(7-1/2 IN.)
Type
Cardioid condenser (electret bias)27.7 mm24.1 mm
(1-3/32 IN.)(15/16 IN.)
Frequency Response
40 to 16,000 Hz (see Figure 1)
OVERALL DIMENSIONS
Polar Pattern
FIGURE 3
Cardioid (see Figure 2)
Output Impedance
CERTIFICATION
600 ohms
Conforms to European Union directives, eligible to bear CE
Recommended Minimum Load Impedancemarking; meets European Union EMC Immunity Require-
800 ohmsments (EN 50 082-1, 1992).
Sensitivity (at 1,000 Hz)
FURNISHED ACCESSORIES
Open Circuit Voltage . . . . . . . . . . . . . . . . -51 dBV/Pa (2.8 mV)
(1 Pa = 94 dB SPL)Swivel Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A25D
Output Clipping Level (1 kHz, 3% THD)Carrying/Storage Bag . . . . . . . . . . . . . . . . . . . . . . . . . 26A13
2000-ohm Load . . . . . . . . . . . . . . -13 dBV (0.22 V) (phantom);
OPTIONAL ACCESSORIES
-17 dBV (0.14 V) (battery)
800-ohm Load . . . . . . . . . . . . . . . -18 dBV (0.13 V) (phantom);Phantom Power Supply . . . . . . . . . . . . . . . . . . . . . . . . PS1A
-21 dBV (89 mV) (battery)Switch-Selectable Attenuator . . . . . . . . . . . . . . . . . . . A15AS
Maximum SPLIsolation Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A53M
2000-ohm Load: 133 dB (phantom), 129 dB (battery)
Windscreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A3WS
800-ohm Load: 131 dB (phantom), 128 dB (battery)
Cable (7.6 m - 25 ft.) . . . . . . . . . . . . . . . . . . . . . . . . . . C25J
Hum Pickup
-1 dB equivalent SPL in a 1 millioersted field (60 Hz)REPLACEMENT PART
Output Noise (equivalent sound pressure levels; measured withScreen and Grille . . . . . . . . . . . . . . . . . . . . . . . . . . . RK255G
true rms voltmeter)
22 dB typical, A-weighted*S/N ratio is difference between microphone output at 94 dB SPL and micro-
phone self-noise A-weighted.
26 dB typical, weighted per DIN 45 505
Dynamic Range (maximum SPL, 2000-ohm load, A-weighted)TROUBLESHOOTING
111 dB (phantom)
If the microphone does not function properly, check to
107 dB (battery)
see if it is receiving proper power using the following steps:
Signal-to-Noise Ratio
1. Try powering the microphone with a fresh battery
71 dB (IEC 651)* at 94 dB SPL
instead of using phantom power.
Overvoltage Protection
Max. external voltage applied to pins 2 and 3 with respect to2. Check the power supply output voltage. For the Shure
pin 1: +52 VdcPS1A, this should be 21.5 ?1.5 Vdc open circuit.
Reverse polarity protected to greater than 100 Vdc
3. Check the voltage on XLR cable connector pins 2 and
Polarity
3 while it is connected to the microphone (with cable
Positive pressure on diaphragm produces positive voltage on
connector disassembled from shell). The voltage at pins
pin 2 relative to pin 3
2 and 3 with reference to pin 1 should be between 11 and
Cartridge Capacitance
24 pF52 Vdc.
PowerNOTE: Do not attempt to service the microphone. Contact
Phantom OperationShure or your local authorized Shure service center.
Supply Voltage . . . . . . . . . . . . 11 to 52 Vdc, (+) pins 2 and 3
Current Drain . . . . . . . . . . . . . . . 2.0 mA max. at 52 VdcARCHITECTS? SPECIFICATIONS
The microphone shall be a condenser microphone with
Battery Operation
a frequency response of 40 to 16,000 Hz. It shall have a car-
Type: 1.5 V alkaline, AA size (NEDA 15A)
Life: Up to 10,000 hours with fresh batterydioid directional characteristic, with cancellation at the sides
of 6 dB and a minimum cancellation at the rear of 15 dB at
Environmental Conditions
Relative Humidity 0-50% . . . . . . . . . . . . . . . . . . - 29 to 74 C1 kHz. The microphone shall have a rated output impedance
(-20 to 165 F)of 600 ohms for connection to microphone inputs of 600
Relative Humidity 0-95% . . . . . . . . . . . . . . . . . . . -29 to 57 Cohms or higher. The open circuit voltage shall be -51 dBV/
(-20 to 135 F)Pa (2.8 mV) (1 Pascal=94 dB SPL).
ConnectorThe overall dimensions shall be 190.5 mm (7-1/2 in.) in
Three-pin professional audio (XLR)3
length by 27.7 mm (1-/32 in.) in diameter. The handle diam-
Caseeter shall be 24.1 mm(15/16 in.)The weight shall be 250
Steel and aluminum construction with platinum beige finish
grams (8.8 oz).
and stainless steel mesh grille
The microphone shall be capable of being powered by
Dimensions
a phantom power supply with an output of 11 to 52 Vdc, or
See Figure 3
by a mixer, audio console or tape recorder capable of sup-
Weight
plying 11 to 52 Vdc, or by an internal 1.5-volt battery.
Net . . . . . . . . . . . . . . . . . . . . . . . 250 grams (8.8 oz) less battery
1
Packaged . . . . . . . . . . . . . . . 849-LC: 957 grams (2 Ib 1-/2 oz)The microphone shall be a Shure Model 849.
2 |
ACEC
