Redback A 4920 Manual de usuario

www.altronics.com.au

User manual revision number: 1.0 22/09/2016

Operating Manual

A 4920 Pre Amplier Balanced Mic/Line Wallplate

Redback® Proudly Made In Australia

Distributed by Altronic Distributors Pty. Ltd.

Phone: 1300 780 999 Fax: 1300 790 999 Internet: www.altronics.com.au

OVERVIEW

This remote mic/line pre-amp wallplate accepts either a microphone or line input for conversion to a balanced high level

signal. The 3V output signal is carried via Cat5e cable, suitable for distribution up to 500m without interference. Mic input

is via a balanced XLR whilst the line input is via 2 x RCA sockets or 3.5mm jack. The Cat5e output cable terminates to an

interface module enabling a balanced mic/line, or unbalanced line signal to be fed into the amplier. Power is supplied via

the included 24V Plugpack which is connected to the interface box. Power for the wallplate is provided through the Cat5e

cable connection.

FEATURES

• Balanced 3 pin XLR mic input

• Dual RCA or 3.5mm line input (Note : audio is internally mixed to become mono signal)

• Up to 500m transmission range

• Uses economical Cat5e cable for connection between wall plate and interface box

• Balanced mic/line or unbalanced line output

• Level control

• Wallplate powered via Cat5e cable from interface box

• 24V DC plugpack supplied

www.altronics.com.auRedback® Proudly Made In Australia

REDBACK A 4920 Balanced Mic/Line Pre-Amp Wallplate

Vol

Wall

Plate On

24VDC Mic Out Line Out

- + - + R L

A 4920 Balanced Mic/Line Pre-Amp

Cat5e max. 500m

Mic Music Volume

O Max

A 4920 Balanced Mic/Line Pre-Amp

24V DC Plugpack

Amplifier Balanced mic/line

Unbalanced line

Microphone

CD Player, Tuner etc

Media Player,

Mobile Phone etc

A 4920 Wallplate

A 4920 Interface Box

Fig. 1: Connection Diagram.

Fig. 2: Fitting of the internal jumper to select either balanced mic level output or balanced line level output.

(To change the jumper, remove the lid from the interface box and then t the jumper for desired output).

Fitting of Internal Jumper

Balanced line

level output

Balanced mic

level output

MIC LEVEL

LINE LEVEL

MIC LEVEL

LINE LEVEL

MIC LEVEL

LINE LEVEL

Jumper

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