Specifications
Type
Condenser (electret bias)
Frequency Response
50–17000 Hz
Polar Pattern
MX412D/C, MX418D/C: Cardioid
MX412D/S, MX418D/S: Supercardioid
Output Impedance
EIA Rated at 150 Ω (180 Ω actual)
Output Configuration
Active balanced
Sensitivity (at 1 kHz , open circuit voltage)
Cardioid: –34 dBV/Pa (21 mV)
Supercardioid: –33 dBV/Pa (24 mV)
1 Pascal=94 dB SPL
Maximum SPL (1 kHz at 1% THD, 1 kΩ load)
Cardioid: 123 dB
Supercardioid: 122 dB
Equivalent Output Noise (A-weighted)
Cardioid: 29 dB SPL
Supercardioid: 28 dB SPL
Signal-to-Noise Ratio (referenced at 94 dB
SPL at 1 kHz)
Cardioid: 65 dB
Supercardioid: 66 dB
Dynamic Range (1 kΩ load at 1 kHz)
94 dB
Common Mode Rejection (10 Hz to 100 kHz)
45 dB minimum
approximately 3 m
(10 ft)
102.1 mm
(4 9/16 in.)
161.9 mm
(6 3/8 in.)
4
Preamplifier Output Clipping Level (1% THD)
–6 dBV (0.5 V)
Polarity
Positive sound pressure on diaphragm produces
positive voltage on pin 2 relative to pin 3 of
output XLR connector.
Net Weight
MX412D: 0.81 kg (1.80 lbs)
MX418D: 0.82 kg (1.82 lbs)
Packaged Weight
MX412D: 1.63 kg (3.62 lbs)
MX412D: 1.64 kg (3.64 lbs)
Logic Connections
LED IN: Active low (≤1.0V), TTL compatible.
Absolute maximum voltage: -0.7V to 50V.
LOGIC OUT: Active low (≤1.0V), sinks up to
20mA, TTL compatible. Absolute maximum
voltage: -0.7V to 50V (up to 50V through 3kΩ).
Mute Switch Attenuation
–50 dB minimum
Cable
3 m (10 ft) attached cable with shielded audio
pair terminated at a 3-pin male XLR and three
unterminated conductors for logic control
Environmental Conditions
Operating Temperature: -18–57 °C (0–135 °F)
Storage Temperature: -29–74 °C (-20–165 °F)
Relative Humidity: 0–95%
Power Requirements
11–52 Vdc phantom, 2.0 mA
MX412D: 355.4 mm (14 in.)
3
MX418D: 501.7 mm (19
/
in.)
4
50.8 mm
(2 1/32 in.)
Furnished Accessories
Snap-fit Foam Windscreen (1 fur-
nished, 4 in replacement kit)
Optional Accessories
Foam Ball Windscreen
Metal Locking Windscreen
Custom Logic Cable (specify length)
Replacement Parts
Omnidirectional Cartridge (Black)
Supercardioid Cartridge (Black)
Cardioid Cartridge (Black)
CERTIFICATION
Eligible to bear CE Marking. Conforms to
European EMC Directive 2004/108/EC. Meets
Harmonized Standards EN55103-1:1996 and
EN55103-2:1996, for residential (E1) and light
industrial (E2) environments.
The Declaration of Conformity can be obtained
from:
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49 7262 92 49 0
Fax: +49 7262 92 49 11 4
Email: info@shure.de
220 pF
FET
220 pF
86E8958
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