Shure : MX418
Description
The Shure Microflex Microphone Series
MX418 brings 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.
The MX-418 condenser cartridges fit every model in the Microflex product line for enhanced convenience and consistent sound.
Features
→ 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 electromagnetic hum and RF interference 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)Specifications
| Frequency Response | 50–17000 Hz |
| Output Impedance | 180 ohms actual (EIA rated at 150 ohms) |
| Sensitivity (At 1,000 Hz, open circuit voltage*) | Cardioid= -35.0 dBV/Pa (17.8 mV); Supercardioid= -33.5 dBV/Pa (21.1 mV); Omnidirectional= -27.5 dBV/Pa (42.2 mV); All values -12 dB at 0 gain; *1 Pascal = 94 dB SPL |
| Maximum SPL (1 kHz at 1% THD, 1 kilohm load) | Cardioid= 124.2 dB; Supercardioid= 122.7 dB; Omnidirectional= 116.7 dB; All values 6 dB at 0 gain |
| Equivalent Output Noise (A-weighted) | Cardioid= 28.0 dB SPL; Supercardioid= 26.5 dB SPL; Omnidirectional= 20.5 dB SPL |
| Signal to Noise Ratio (referenced at 94 dB SPL) | Cardioid= 66.0 dB; Supercardioid= 67.5 dB; Omnidirectional= 73.5 dB |
| 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 |
| Environmental Requirements | Operating Temperature Range= -18 to 57 degrees C (0 to 135 degrees F); Relative Humidity= 0 to 95% |