Shure Microflex MX396 Manual de usuario

MX396 Dual & Tri-Element Microphones

27A21441 (Rev. 1)

MX396 两单元和三单元话筒

MX396 デュアル & トライエレメントマイクロホン

ДВУХ- И ТРЕХЭЛЕМЕНТНЫЕ МИКРОФОНЫ MX396

MICROFONI A DUE E TRE ELEMENTI MX396

MICROFONOS MX396 DE DOS Y TRES ELEMENTOS

MIKROFONE MX396 MIT ZWEI UND DREI KAPSELN

MICROPHONES À ÉLÉMENTS DOUBLES ET TRIPLES MX396

Microfone de Superfície com Vários Elementos

Multi-Element Boundary Microphone

General Description

Shure MX396 Dual-Element and Tri-Element microphones provide

full coverage of large tables with fewer microphones, and feature a

low profile design. This makes them ideal for use in boardrooms and

other installations where aesthetics are important.

Features

• Low profile, aesthetic design

• Wide dynamic range and smooth frequency response

• Configurable mute switch with logic output

• Logic input for external LED control

• RF filtering with CommShield®technology

Placement

Important: Align the Shure logo as shown for proper coverage.

MX396/C-DUAL

2 x 130° @ -3 dB

MX396/C-TRI

300° @ -3 dB

MX396/C-DUAL & TRI

MX396/C-TRI

360°

Reconfiguring the MX396-TRI for 360° Coverage

To configure the MX396 for 360° "omnidirectional" coverage, open the grille and reposition the internal mic elements as shown.

Permanent Installation

Note: Overtightening the wing nut reduces shock isolation.

Cable

The MX396 comes with a 20 ft. attached, unterminated cable.

Wire Color Function Mic Element

White Mic 1 Audio + A

Green Mic 1 Audio −

Orange Mic 2 Audio + B

Blue Mic 2 Audio −

Yellow Mic 3 Audio + C (TRI models)

Gray Mic 3 Audio −

Red SWITCH OUT All

Black LED IN

Silver

(non-insulated)

Logic Ground

Shield Mic Common

Ground

Phantom Power

Each element in the microphone requires 12 to 48 V phantom power.

The LED also uses phantom power, and dims slightly when phantom

power voltage drops below 48 V DC.

The Tri-element model draws 22 mA at 48 V. The Dual-element mod-

el draws 19 mA at 48 Vdc. (Each element draws 3 mA and the LED

draws 13 mA, distributed equally among each element.)

NOTE: Do not connect multiple elements in parallel to a single mic

input. The phantom power current draw could exceed the maximum

allowable for one mic input.

Accessing the DIP Switches

Caution: Failure to reinstall the setscrew will reduce RF immunity.

DIP Switch Settings

DOWN (Default) UP

Momentary Toggle

Push-to-Mute Push-to-Talk

Mute button enabled,

LED illuminates when

mic is active

Disable mute button

(microphone always

on), logic controls LED

Full Frequency Range 6dB/octave Low Cut

Filter

Local Mute Control

The mircophone ships configured for local (manual) mute control

(DIP Switch 3 down). In this mode, the PUSH button on the micro-

phone mutes the audio signal at the microphone. Audio is not sent

to the audio outputs.

In this configuration, the LED color reflects the microphone state, as

controlled by the user with the PUSH button.

Green: microphone active

Red: microphone muted

Button Configuration

For local mute control operation, use DIP Switches 1 and 2 to configure the button behavior.

Button Behavior SWITCH OUT Logic Signal DIP Switch Setting

Momentary: push-to-mute (as

shipped).

When pushed, SWITCH OUT

(red wire) falls to 0 V. When re-

leased, SWITCH OUT returns

to +5 V.

Momentary: push-to-talk

Toggle: Push and release to

toggle the microphone on or

off. Mic is active when pow-

ered on.

Push and release sets

SWITCH OUT to 0 V. Push

again to toggle back to +5 V.

Toggle: Push and release to

toggle the microphone on or

off. Mic is mute when powered

Low Cut Filter

Set DIP Switch 4 up to activate the low cut filter. Attenuates 6 dB per octave below 150 Hz.

Logic Mute Control (Automatic Mixing)

Set DIP Switch 3 up to configure the microphone for logic control applications where audio from the microphone is muted by an external de-

vice, such as an automatic mixer. In this mode, the local mute function of the PUSH button is bypassed (the microphone always sends audio)

and the LED does not respond directly from pushing the button.

As required by the installation specifications, wire the SWITCH OUT conductor in the microphone cable to the automatic mixer or other TTL

logic device. When the talker presses the button on the microphone, it changes the voltage level at the SWITCH OUT conductor, which sig-

nals the device to mute audio for that channel or perform some other function.

To control the LED on the microphone, wire the LED IN conductor to the gate output on the automatic mixer (or any TTL logic device).

Button Configuration

For logic control operation, DIP Switch 1 determines the button behavior (DIP Switch 2 has no effect).

Button Behavior DIP Switch Setting

Momentary: When pushed, SWITCH OUT (red

wire) falls to 0 V. When released, SWITCH OUT

returns to +5 V.

Toggle: Push and release sets SWITCH OUT

to 0 V. Push again to toggle back to +5 V.

Controlling the LED Using Logic LED IN

When configured for logic mute control, connect the LED IN conductors to an external switch, relay, or a TTL gate (gate

out) on an automatic mixer.

• The LED illuminates green when the MX396 LED IN is grounded (black wire connected to the bare silver wire).

• The LED illuminates red when LED IN is lifted (black wire is NOT connected to the bare silver wire).

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

MX396/C-DUAL Cardioid (x2)

MX396/C-TRI Cardioid (x3)

Output Impedance

170 Ω

Output Configuration

Active Balanced

Sensitivity

@ 1 kHz, open circuit voltage

−35 dBV/Pa (18 mV)

1 Pa=94 dB SPL

Maximum SPL

1 kHz at 1% THD, 1 kΩ load

122 dB

Equivalent Output Noise

A-weighted

30 dB SPL

Signal-to-Noise Ratio

Ref. 94 dB SPL at 1 kHz

64 dB

Dynamic Range

1 kΩ load, @ 1 kHz

92 dB

Common Mode Rejection

10 to 100,000 kHz

45 dB, minimum

Preamplifier Output Clipping Level

at 1% THD

–7 dBV (0.5 V)

Mute Switch

−50 dBminimum

Logic Connections

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

-0.7V to 50V.

LOGIC-OUT Active low (≤0.5V), sinks up to 20mA, TTL compatible. Absolute

maximum voltage: -0.7V to 24V (up to 50V through 3kΩ).

Cable

6.1 m (20 ft), attached, unterminated, three shielded audio pairs and three shielded con-

ductors for logic control

Net Weight

594 g (1.3 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

MX396/C-DUAL 48–52 V DC, 19.0 mA

MX396/C-TRI 48–52 V DC, 22.0 mA

Specifications

Replacement Parts

Fastening Wing Nut

Mounting Tube

Rubber Isolation Rings (2)

Mic Cartidge (Cardioid)

65A2190

31A2165

66A405

R185B

Microphone à effet de surface multi capsules

Description générale

Les microphones à deux et trois capsules Shure MX396 assurent

la couverture complète de grandes tables avec moins de micro-

phones tout en offrant un design extra-plat. Ainsi, ils conviennent

parfaitement aux salles de réunion et autres lieux où l'esthétique est

importante.

Caractéristiques

• Design esthétique et extra-plat

• Plage dynamique large et réponse en fréquence régulière

• Interrupteur de coupure du son configurable avec sortie logique

• Entrée logique pour commande externe de la LED

• Filtrage RF avec technologie CommShield®

Placement

Important : Aligner le logo Shure comme indiqué pour obtenir la couverture adéquate.

MX396/C-DUAL

2 x 130° @ -3 dB

MX396/C-TRI

300° @ -3 dB

MX396/C-DUAL & TRI

MX396/C-TRI

360°

Configuration du microphone MX396-TRI pour une couverture à 360°

Pour configurer le microphone MX396 pour une couverture « omnidirectionnelle » à 360°, ouvrir la grille et repositionner les capsules internes

du micro comme illustré.

Installation permanente

Remarque: un serrage excessif de l'écrou à oreilles réduit l'isolation contre les chocs.

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