Replacement Parts And Accessories; Specifications - Shure Microflex MX400D Series User Manual

Custom Switch Modifications
S4 is available for custom logic modifications. When S4 is in
the ON position, pad W4 is connected to pad W5.
SHURE, the Shure logo, and MICROFLEX are registered trade-
marks of Shure Incorporated.
DESIRED MICROPHONE FUNCTION
Push to Mute (As Shipped)
Push to Talk
Push On/Push Off
Switch Deactivated, Mic Inactive
Switch Deactivated, Mic Always Active
Automatic Mixer Mode

SPECIFICATIONS

Frequency Response (figure 3)
50 to 17,000 Hz
Polar Pattern (figure 4)
Output Impedance (at 1,000 Hz)
Rated at 150 Ω (180 Ω actual)
Open Circuit Sensitivity
At 1 kHz, ref. 1 V per Pascal*
Cardioid: –33.5 dBV (21.1 mV)
Supercardioid: –32.5 dBV (23.7 mV)
Omnidirectional: –28.0 dBV (39.8 mV)
* 1 Pascal=94 dB SPL
Maximum SPL (1kHz at 1% THD, 1 kΩ load)
Cardioid: 123.0 dB
Supercardioid: 122.0 dB
Omnidirectional: 117.5 dB
Equivalent Output Noise (A-weighted)
Cardioid: 29.0 dB SPL
Supercardioid: 28.0 dB SPL
Omnidirectional: 70.5 dB SPL
Signal to Noise Ratio (referenced at 94 dB SPL)
Cardioid: 65.0 dB
Supercardioid: 66.0 dB
Omnidirectional: 70.5 dB
Dynamic Range with 1 kΩ load
94.0 dB
Common Mode Rejection
45.0 dB minimum
Mute Switch Attenuation
50.0 dB minimum
Preamplifier Output Clipping Level (1% THD)
–6.0 dBV (0.5 V)

REPLACEMENT PARTS AND ACCESSORIES

Snap-Fit Foam Windscreen (4 per pkg.)
Foam Ball Windscreen
Locking Metal Windscreen
Replacement 3 m (10 ft) XLR Cable
Custom Logic Cable (specify length)
Omnidirectional Cartridge
Supercardioid Cartridge
Cardioid Cartridge
Base Plate Bumpers
USER ACTION/LED DISPLAY
Press and hold switch to temporarily mute micro-
phone; release switch to unmute
LED turns on when microphone is active
Press and hold switch to activate microphone; re-
lease switch to mute
LED turns on when microphone is active
Press switch to toggle microphone on or off
LED turns on when microphone is active
No action, LED Always OFF
Short LED IN terminal to LOGIC GROUND terminal
LED Always ON
If S1=OFF, SWITCH OUT signal will be momentarily
logic low when switch is pressed
If S1=ON, SWITCH OUT signal will be latching logic
low when switch is pressed
Connect SWITCH OUT signal to various logic inputs
of automatic mixer for custom functions
Connect mixer channel GATE OUT to microphone
LED IN. LED on microphone turns on when its
channel is gated on
Polarity
Positive sound pressure on diaphragm produces positive
voltage on pin 2 relative to pin 3 of XLR 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 5)
Weight
MX412D: 0.81 kg (1.80 lbs.) net, 1.63 kg (3.62 lbs.)
packaged
MX418D: 0.82 kg (1.82 lbs.) net, 1.64 kg (3.64 lbs.)
packaged
Cable Type (figure 7)
The attached custom cable contains a shielded audio pair
and three unshielded conductors for logic control.
Overall diameter=0.6 mm (0.165 in.)
Certification
Eligible to bear CE Marking. Conforms to European EMC
Directive 89/336/EEC. Meets applicable tests and perfor-
mance criteria in European Standard EN55103 (1996) parts
1 and 2, for residential (E1) and light industrial (E2)
environments.
2
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DIP SWITCH SETTINGS
S1 = OFF
S2 = OFF
S3 = OFF
S1 = OFF
S2 = ON
S3 = OFF
S1 = ON,
S2 = ON for muted initial state
S2 = OFF for active initial state
S3 = OFF
S3 = ON
S3 = ON
S1 = ON or OFF
S3 = ON
RK412WS
A99WS
A412MWS
C120
15A523/1
R183B
R184B
R185B
80A8053A