Shure MX300 Series manual Specifications, Replacement Parts

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 ￿ (180 ￿ 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 k￿ 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 (≤1.0v), TTL compatible. Absolute

maximum voltage: --0.7V to 50V.

SWITCH OUT: Active low (≤0.5V), sinks up to 20mA,

TTL compatible. Absolute maximum voltage: --0.7V to 24V (up to 50V through 3k￿).

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

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.

REPLACEMENT PARTS

Omnidirectional Cartridge . . . . . . . . . . . . . . . . . . . . . . R183 Supercardioid Cartridge . . . . . . . . . . . . . . . . . . . . . . . R184 Cardioid Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . R185 12’ (3.7m) Cable 3-Pin Miniature Connector (TA3F)

to male XLR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C119

SHURE, the Shure logo, and MICROFLEX are registered trade- marks of Shure Incorporated.

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