Shure MX418DN - 18 Desk-Top Mounted Gooseneck (No Microphone Cartridge)

The Shure MX418D/N is a miniature gooseneck-mounted electret condenser microphone for speech and vocal pickup. 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. This particular product includes no mic cartridge (cartridges sold separately-contact your sales representative for more information) . Plus, the condenser cartridges fit every model in the Microflex product line for enhanced convenience and consistent sound. The MX418D/N features an attached 10 ft. XLR cable, logic functions, programmable switch and LED indicator, and an attached desktop base.
Shure MX418D/N Features:

Balanced, transformerless output for increased immunity to electromagnetic hum and RF interference over long cable runs
Shock mount that provides over 20 dB isolation from surface vibration noise
Attached desktop base
Snap-fit foam windscreen
18 inches
No mic 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
Programmable switch and LED indicator
New brighter LED improves visibility under strong ambient lighting
Logic input and output terminals for remote control or use with automatic microphone mixers

Shure MX418D/N Specifications:

Frequency Response: 50 to 17,000 Hz
Output Impedance (at 1,000 Hz): Rated at 150Ohms (180 Ohms 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 kOhm 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 kOhm 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: See Accompanying 'Shure MX400D Series Microphones Spec Sheet'
Weight: 0.82 kg (1.82 lbs.) net, 1.64 kg (3.64 lbs.)packaged


Cable Type: 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

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