Shure : MX392
Description
The Shure Microflex Microphone Series
MX 392 and MX393 Microflex® Wired Boundary Microphones from Shure are equipped with features like programmable, silent membrane switches, logic inputs and outputs, and green LED indicators. The high-quality solution for a range of applications such as altars, boardrooms and distance learning centers, Microflex Boundary microphones feature interchangeable condenser cartridges.
MX-392: Surface-mount mic; LED logic input/switch logic output terminals, screw terminal connections, attached unterminated cable
MX393: Surface-mount mic; miniature three pin connector, 12′ XLR cable
Features
→ Flat frequency response across the vocal range for uncolored sound→ Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide choices for applications→ Sleek, low-profile design for unobtrusive appearanceSpecifications
| Frequency Response | 50 to 17,000 Hz |
| Polar Pattern | Cardioid (MX392/C, MX393/C); Supercardioid (MX392/S, MX393/S); Omnidirectional (MX392/O, MX393/O) |
| Output Impedance | EIA Rated at 150 O (180 O actual) |
| Sensitivity (at 1 kHz, open circuit voltage) | Cardioid Cartridge= –27.5 dBV/Pa (42.2 mV); Supercardioid Cartridge= –26.5 dBV/Pa (47.3 mV); Omnidirectional= –22.0 dBV/Pa (79.4 mV); 1 Pascal=94 dB SPL |
| Maximum Sound Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 kO load) | Cardioid= 117.0 dB; Supercardioid= 116.0 dB; Omnidirectional= 111.5 dB |
| Signal to Noise Ratio (referenced at 94 dB SPL) | Cardioid= 71.0 dB; Supercardioid= 72.0 dB; Omnidirectional= 76.5 dB |
| Equivalent Output Noise (A-weighted) | Cardioid= 23.0 dB; Supercardioid= 22.0 dB; Omnidirectional= 17.5 dB |
| Dynamic Range | 94.0 dB |
| Common Mode Rejection | 45 dB minimum, 10 Hz to 100 kHz |
| Switch Attenuation | 50 dB minimum |
| Preamplifier Output Clipping Level | –6 dBV (0.5 V) |
| Polarity | Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output connector |
| Logic Connections (MX392 Only) | LED IN= Active low (v1.0v), TTL compatible. Absolute maximum; voltage= -0.7V to 50V.; SWITCH OUT= Active low (v0.5V), sinks up to 20mA, TTL compatible. Absolute maximum voltage: -0.7V to 24V (up to 50V through 3kO) |
| Power Requirements | 11 to 52 Vdc phantom; 2.0 mA current consumption |
| Environmental Requirements | Operating Temperature Range= –18° C to 57° C (0° F to 135° F); Relative Humidity= 0 to 95% |