SHURE MX412D/C

SHURE MX412D/C

Microflex Standard Gooseneck microphones bring a whole new meaning to the word flexible with their fully adjustable gooseneck. Designed for easy replacement and available in cardioid, supercardioid and omnidirectional polar patterns, the interchangeable cartridges offer wide frequency response and accurate sound reproduction for a wide variety of applications, such as houses of worship, courtrooms and conference centers. Plus, the condenser cartridges fit every model in the Microflex product line for enhanced convenience and consistent sound.

Microflex Gooseneck microphones are available in four models with a variety of heights and mounting styles to choose from. One model includes a silent mute switch with LED indicator, a Shure Microflex exclusive. And every Microflex Gooseneck features high sensitivity and balanced, transformerless output for maximum resistance to electromagnetic hum and RF interference, even over long cable runs.

The polar pattern of the cartridge is indicated by the model number suffix:

C = Cardioid, S = Supercardioid, N = No Cartridge

• Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum
• Interchangeable cartridges provide the right polar pattern for every application
• Balanced, transformerless output for increased immunity to noise over long cable runs
• Shock mount provides over 20 dB isolation from surface vibration noise
• Locking flange mount for permanently securing microphone to lecterns, pulpits, or conference tables
• Snap-fit foam windscreen
• Programmable on/off switch and LED on/off indicator (MX412D/MX418D)
• New brighter LED improves visibility under strong ambient lighting (MX412D/MX418D)
• Logic input and output terminals for remote control or use with automatic microphone mixers (MX412D/MX418D)
• Supplied shock mount for more than 20 dB isolation from surface transmitted noise (MX412SE/MX418SE)
• Supplied threaded flange mount for permanently securing the microphone to a lectern, pulpit, or conference table (MX412SE/MX418SE)

• 50 to 17,000 Hz

Polar Pattern (Figure 2)

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)

Polarity

• Positive sound pressure on diaphram 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 3)
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 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
• Replacement 3 m (10 ft) XLR Cable : C120
• Custom Logic Cable (specify length) : 15A523/1
• Omnidirectional Cartridge : R183B
• Supercardioid Cartridge : R184B
• Cardioid Cartridge : R185B
• Base Plate Bumpers : 80A8053A