Specification Sheet
E2002, Shure Incorporated
MODEL MX400SE SERIES MICROPHONES
OVERVIEW
Shure Microflex
MX400SE Series microphones are miniature
gooseneck-mounted electret condenser microphones designed for
speech and vocal pickup. Their high sensitivity and broad frequen-
cy range make them suitable for recording, as well as sound rein-
forcement applications.
MX400SE microphones can be screwed onto a mic stand or
the supplied 5/8 inch 27-threaded flange. They can be easily
changed from side-exit to bottom-exit to conceal the cable. All
models include an in-line preamplifier and a 3 m (10 ft) cable.
Each microphone is available with interchangeable cardioid, su-
percardioid, or omnidirectional cartridges.
FEATURES
S Wide dynamic range and frequency response for accurate
sound reproduction across the audio spectrum
S Interchangeable cartridges that provide an optimal polar
pattern choice for each application
S Balanced transformerless output for increased immunity to
noise over long cable runs
S Supplied shock mount for more than 20 dB isolation from
surface transmitted noise
S Supplied threaded flange mount for permanently securing the
microphone to a lectern, pulpit, or conference table
S Snap-fit foam windscreen
MODEL VARIATIONS
All Microflex
R
microphones are available with any one of three
interchangeable cartridges. The polar pattern is indicated by the
model number suffix:
/C = Cardioid, /S = Supercardioid, /O = Omnidirectional
MX412SE/C, MX418SE/C: Recommended for general sound
reinforcement applications. Pickup angle (–3 dB) = 130°.
MX412SE/S, MX418SE/S: Recommended for sound rein-
forcement applications requiring narrow or more distant cov-
erage. Pickup angle (–3 dB) = 115°.
MX412SE/O, MX418SE/O: Recommended for recording or re-
mote monitoring applications. Pickup angle = 360°.
SPECIFICATIONS
Frequency Response (Figure 1)
50 to 17,000 Hz
Polar Pattern (Figure 2)
Output Impedance (at 1000 Hz)
Rated at150 Ω (180 Ω actual)
Open Circuit Sensitivity (at 1 kHz, ref. 1 V/Pascal*)
Cardioid: –35.0 dB (17.8 mV)
Supercardioid: –33.5 dB (21.1 mV)
Omnidirectional: –27.5dB (42.2 mV)
*1 Pascal= 94 dB SPL
Maximum SPL (1 kHz at 1% THD, 1 kΩ load)
Cardioid: 124.2.0 dB
Supercardioid: 122.7 dB
Omnidirectional: 116.7 dB
Equivalent Output Noise (A-weighted)
Cardioid: 28.0 dB SPL
Supercardioid: 26.5 dB SPL
Omnidirectional: 20.5 dB SPL
Signal to Noise Ratio (referenced at 94 dB SPL)
Cardioid: 66.0 dB
Supercardioid: 67.5 dB
Omnidirectional: 73.5 dB
Dynamic Range
at 1 kΩ Load
96.2 dB
Common Mode Rejection
45.0 dB minimum
Preamplifier Output Clipping Level (1% THD)
–6.0 dBV (0.5 V)
Polarity
Positive sound pressure on diaphragm produces positive
voltage on pin 2 relative to pin 3 of output connector.
Power Requirements
11 to 52 Vdc phantom, 2.0 mA
Environmental Requirements
Operating Temperature Range: –18° to 57° C (0° to 135° F)
Relative Humidity: 0 to 95%
Dimensions (Figure 3)
Certification
Eligible to bear CE Marking. Conforms to European EMC
Directive 89/336/EEC. Meets applicable tests and performance
criteria in European Standard EN55103 (1996) parts 1 and 2, for
residential (E1) and light industrial (E2) environments.
REPLACEMENT PARTS
Snap-fit Foam Windscreen (4 per pkg.) RK412WS
Foam Ball Windscreen A99WS
Locking Metal Windscreen A412MWS
Omnidirectional Cartridge R183B
Supercardioid Cartridge R184B
Cardioid Cartridge R185B
Replacement Preamplifier RK183PK
Shock Mount A400SM
Model MX400SE Series Microphones
Specification Sheet