Shure MX418D/S 18" Desktop Gooseneck Microphone (supercardioid)

The Shure MX418D/S is an 18" Desktop Gooseneck Microphone featuring a supercardioid condenser cartridge, designed for precise audio capture in professional environments. Perfect for conference tables, lecterns, and podiums, the MX418D/S delivers focused sound while rejecting off-axis noise for crystal-clear speech reproduction.

Its fully adjustable 18" gooseneck allows flexible positioning, while the built-in shock mount reduces surface vibration noise by over 20 dB. Balanced, transformerless output ensures minimal interference over long cable runs. A snap-fit foam windscreen minimizes plosives and unwanted ambient noise, making it ideal for high-quality audio recording and amplification.

Shure MX418D/S Key Features:

• Supercardioid Polar Pattern: Targeted sound capture with ambient noise rejection.

• 18" Adjustable Gooseneck: Flexible placement for desktop, podium, or lectern.

• Balanced, Transformerless Output: High immunity to electromagnetic hum and RF interference.

• Shock Mount: Reduces surface vibrations and handling noise.

• Locking Flange Mount: Provides secure installation on desktops and tables.

• Snap-Fit Foam Windscreen: Protects against plosives and environmental noise.

Common Applications:

• Conference Centers: Ideal for panel discussions, meetings, and workshops.

• Houses of Worship: Clear and focused audio for sermons and podium use.

• Courtrooms: Accurate capture of speech in legal proceedings.

Shure MX418D/S Specifications

Transducer	Condenser
Polar Pattern	Supercardioid
Frequency Response	50 to 17,000 Hz
Output Impedance	180 ohms actual (EIA rated at 150 ohms)
Sensitivity (At 1,000 Hz)	(open circuit voltage) -33.5 dBV/Pa (21.1 mV)
Maximum SPL	122.7 dB (1 kHz at 1% THD, 1 kilohm load)
Equivalent Output Noise (A-weighted)	26.5 dB SPL
Signal to Noise Ratio	67.5 dB (referenced at 94 dB SPL)
Dynamic Range at 1 kilohm load 96.2 dB	100 dB at 0 gain
Common Mode Rejection	45.0 dB minimum
Preamplifier Output Clipping Level	(1% THD) -6.0 dBV (0.5 V) -12 dBV at 0 gain
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
Operating Temperature Range	-18 to 57 degrees C (0 to 135 degrees F)
Relative Humidity	0 to 95%
Dimensions	Microphone: 19.75 x .79" (501.7 x 20.07mm) (L x Diameter) Base: 6.375 x 4.56" (161.9 x 115mm) (L x W)
Weight	1.82 lbs. (0.82 kg)