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SPECIFICATIONS
Type
Condenser (electret bias)
Frequency Response (Figure 3)
50 to 17,000 Hz
Polar Pattern (Figure 4)
MX183: Omnidirectional
MX184: Supercardioid
MX185: Cardioid
Output Impedance
EIA rated at 150 Ω (180 Ω actual)
Open Circuit Sensitivity (at 1 kHz, ref. 1V/microbar*)
MX183: –48.0 dB (3.98 mV)
MX184: –52.5 dB (2.37 mV)
MX185: –53.5 dB (2.11 mV)
*1 microbar = 74 dB SPL
Max SPL (1kHz at 1%THD, 1 kΩ load)
MX183: 117.5 dB
MX184: 122.0 dB
MX185: 123.0 dB
Equivalent Output Noise (A-weighted)
MX183: 23.5 dB
MX184: 28.0 dB
MX185: 29.0 dB
Signal to Noise Ratio (referenced at 94 dB SPL)
MX183: 70.5 dB
MX184: 66.0 dB
MX185: 65.0 dB
Dynamic Range at 1 kΩ load
94 dB
Power Requirements
11 to 52 Vdc phantom, 2.0 mA
Common Mode Rejection
45.0 dB minimum
Polarity
Positive sound pressure on diaphragm produces positive
voltage on pin 2 relative to pin 3 of output XLR connector.
Environmental Conditions
Operating Temperature Range: -18
o
to 57
o
C (0
o
to 135
o
F)
Storage Temperature Range: -29
o
to 74
o
C (–20
o
to 168
o
F)
Cable
Shielded 1.2 meter (4 ft.) cable terminated with a
miniature Switchcraft TA4F Tini Q–G 4-pin connector.
Dimensions (Figure 6)
Certification
Conforms to European Union directives, eligible to bear
CE marking; meets European Union EMC Immunity
Requirements (EN 50 082–1, 1992); RF radiated (IEC
801–3); ESD (IEC801–2); EFT (IEC 801–4).
NOTE: For technical data by Fax, call 1–800–488–3297 and
follow the recorded instructions. For additional assistance,
call Shure at (847) 866-2200. In Europe, call
49-7131-72140.
REPLACEMENT PARTS
Omnidirectional Cartridge R183. . . . . . . . . . . . . . . . . . . . .
Supercardioid Cartridge R184. . . . . . . . . . . . . . . . . . . . . .
Cardioid Cartidge R185. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preamp Kit RK183PK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Snap–Fit Windscreens (4 per pkg.) RK183WS. . . . . . . .
Small Foam Windscreens (4 per pkg.) RK261WS. . . . .
Tie Clips (2 per pkg.) RK183T1. . . . . . . . . . . . . . . . . . . . . .
Dual Tie Clip RK183T2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Miniature 4-pin connector WA330. . . . . . . . . . . . . . . . . . . .
English: Print 1-2, 11-12