Replacement Parts - Shure Microflex MX300 Serie Guia Del Usuario

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SPECIFICATIONS
All measurements taken with microphone mounted on a
wooden surface 76.2 cm x 76.2 cm (30 in. x 30 in.).
Frequency Response (Figure 7)
50 to 17,000 Hz
Polar Pattern (Figure 8)
Cardioid (MX392/C, MX393/C)
Supercardioid (MX392/S, MX393/S)
Omnidirectional (MX392/O, MX393/O)
Output Impedance
EIA Rated at 150 Ω (180 Ω actual)
Sensitivity (at 1 kHz, open circuit voltage)
Cardioid Cartridge: –27.5 dBV/Pa (4.22 mV)
Supercardioid Cartridge: –26.5 dBV/Pa (4.73 mV)
Omnidirectional: –22.0 dBV/Pa (7.94 mV)
1 Pascal=94 dB SPL
Maximum Sound Pressure Level
(1 kHz at 1% Total Harmonic Distortion, 1 kΩ 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 3kΩ).
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%
Dimensions (Figure 9)
Certification
Conforms to European Union directives, eligible to bear
CE marking; meets European Union EMC Immunity
Requirements (EN 50082–1: 1992).

REPLACEMENT PARTS

Omnidirectional Cartridge
Supercardioid Cartridge
Cardioid Cartridge
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NOTE: For technical data by Fax, phone 1-800-488-3297
and follow the recorded instructions. For additional techni-
cal assistance, phone Shure at (847) 866-2200. In Europe,
phone 49-7131-72140.
SHURE, the Shure logo, and MICROFLEX are registered trade-
marks of Shure Incorporated. Tini Q-G is a registered trademarks
of Switchcraft Incorporated.
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