Shure Microflex MX395 User manual

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MX395 -- Low-Profile Boundary Microphone

General Description

Shure MX395 low-profile microphones are for use in boardrooms and other sites where aesthetics are important.

The MX395 is only 2.5 cm (1 in.) in diameter, and extends just 2 cm above the mounting surface when installed.

Despite its small size, the MX395 delivers clear, high quality sound.

Features

•Low profile, aesthetic design

•Wide dynamic range and smooth frequency response

•RF filtering with CommShield technology

•Available with logic-controlled bi-color status indicator

Model Variations

The MX395 is available in cardioid, omnidirectional, and bidirectional polar patterns, with or without an LED status

indicator, with a black, white, or aluminum finish.

Polar Patterns

The polar pattern is indicated by the molded grille.

Microphone Placement

For best low-frequency response and rejection of background noise, place the microphone on a large, flat surface,

such as a floor, table, or lectern.

To reduce reverberance, avoid reflective surfaces above or to the side of the microphone, such as beveled sides

of pulpits or overhanging shelves.

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DIP Switches

Set DIP Switch 1 up to engage the low cut filter, which attenuates frequencies by 6 dB per octave below 150 Hz.

Switch Down (default) Up

1 Full frequency response Low cut filter

2 -- --

Installation

Install the microphone into a tabletop as shown.

Important:

•Align indentation toward talker

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•Do not over tighten the wing nut, as this reduces shock isolation

LED Logic

For models equipped with an LED, use the included 5-pin XLR connector to wire the microphone to an automatic

mixer or other logic device.

Note: Connect the LED IN to the gate output to illuminate the LED when the channel is gated on.

Do not use the relay ports on Crestron and AMX devices. Use the I/O logic ports instead.

The LED logic may not function when connecting to devices that do not have internal "pull-up resistor" logic cir-

cuits, such as ClearOne DSP products. External pull-up resistor circuits can be added for each microphone. Vistit

www.shure.com/FAQ for detailed instructions.

Logic Connection

Connection to device with internal "pull-up resistor" logic circuit

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LED Indicator Response to Logic Signal at Pin 5

Pin Assignments

3-Pin XLR

5-Pin XLR

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Accessories

Furnished Accessories

Specifications

All measurements taken with microphone mounted on a wooden surface (76 x 76 cm)

Cartridge Type

Electret Condenser

Frequency Response

50–17000 Hz

Polar Pattern

MX395/O Omnidirectional

MX395/C Cardioid

MX395/BI Bidirectional

Output Impedance

170 Ω

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Output Configuration

Active Balanced

Sensitivity

@ 1 kHz, open circuit voltage

Cardioid −35 dBV/Pa (18 mV)

Omnidirectional −28 dBV/Pa (42 mV)

Bidirectional −37 dBV/Pa (14 mV)

1 Pa=94 dB SPL

Maximum SPL

1 kHz at 1% THD, 1 kΩ load

Cardioid 121 dB

Omnidirectional 114 dB

Bidirectional 123 dB

Equivalent Output Noise

A-weighted

Cardioid 28 dB SPL

Omnidirectional 21 dB SPL

Bidirectional 29 dB SPL

Signal-to-Noise Ratio

Ref. 94 dB SPL at 1 kHz

Cardioid 66 dB

Omnidirectional 73 dB

Bidirectional 65 dB

Dynamic Range

1 kΩ load, @ 1 kHz

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Cardioid 93 dB

Omnidirectional 93 dB

Bidirectional 94 dB

Common Mode Rejection

10 to 100,000 kHz

45 dB, minimum

Preamplifier Output Clipping Level

at 1% THD

−8 dBV (0.4 V)

Logic Connections

LED IN Active low (≤1.0V), TTL compatible. Absolute maximum voltage:

-0.7V to 50V.

Net Weight

136 g (0.30 lbs)

Environmental Conditions

Operating Temperature –18–57°C (0–135°F)

Storage Temperature –29–74°C (–20–165°F)

Relative Humidity 0–95%

Power Requirements

MX395 11–52 V DC, 2.0 mA

MX395-LED 48–52 V DC, 8.0 mA

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MX395/C

MX395/BI

MX395/O

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Certifications

This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.

The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance

Authorized European representative:

Shure Europe GmbH

Headquarters Europe, Middle East & Africa

Department: EMEA Approval

Jakob-Dieffenbacher-Str. 12

75031 Eppingen, Germany

Phone: +49-7262-92 49 0

Fax: +49-7262-92 49 11 4

Email: [email protected]

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