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Redback® A 4427

8 Channel Public Address Mixer

User manual revision number: 1.0 29/10/2018

Operating Manual

A 4427

8 CHANNEL MIXER WITH MESSAGE PLAYER

IMPORTANT NOTE:

Please read these instructions carefully from front to back prior to installation.

They include important setup instructions.

Failure to follow these instructions may prevent the unit from working as designed.

Redback® Proudly Made In Australia

Distributed by Altronic Distributors Pty. Ltd.

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

8 CHANNEL PA MIXER

Содержание A 4427

Страница 1: ...ase read these instructions carefully from front to back prior to installation They include important setup instructions Failure to follow these instructions may prevent the unit from working as desig...

Страница 2: ...ce starting manu facturing of commercial audio equipment in the mid 70 s we have always taken pride in producing a quality local product The new adoption of the Australian Made logo will help us get t...

Страница 3: ...tivities and a 24V DC output limited to 120mA current draw which becomes live when any triggers are activated or VOX PTT circuitry becomes active 2 0 FEATURES Eight input channels Micro SD card messag...

Страница 4: ...Press this button to switch the unit ON Once the unit is ON the On indicator will illuminate Press this switch again to put the unit back in standby mode 7 LED VU Meter This LED bargraph provides a v...

Страница 5: ...Over Message Volumes Use these trimpots to adjust the output levels of the alert and evacuation tone and the chime and voice over message 8 Alert Evacuation chime and cancel contacts Use these contac...

Страница 6: ...ert Evac Ch 1 Com Can Tape Out Mic 1 24V DC In DIP 1 DIP 2 DIP 3 DIP 4 DIP 5 L R L R 24VDC Backup 16GB Maximum Micro SD Card Line 1 Line 2 L R Mic 2 Mic 1 DIP 6 DIP 7 Ch 2 24VDC Output 120mA Limited I...

Страница 7: ...a sensitivity of 1V and the VOX priority disabled The output of the mixer is fed into a power amplifier which drives the speakers All DIP switch settings are shown below NOTE The switches are ON when...

Страница 8: ...FF Mic ON Line DIP 5 Switch 1 ON Enables Phantom power to the Mic on input 5 Switch 2 ON Sets Input 5 priority or VOX to ON Switch 3 Sets Line 5 input sensitivity to either ON 1V or OFF 100mV Switch 4...

Страница 9: ...any readily available PC software or other means and then transferred to these folders Activating the Voice Over Message Voice over messages become active when an MP3 file is present in the relevant f...

Страница 10: ...of the SD Card include a Library folder of sample MP3 files and five folders for the MP3 files associated with the various triggers There should be default MP3 files included in each folder These will...

Страница 11: ...steps for the other MP3 folders if you need to The card can be removed from the PC following windows safe card removal procedures Make sure the A 4427 is OFF and insert the SD card into the slot in th...

Страница 12: ...tically 12 0 SPECIFICATIONS OUTPUT LEVEL 0dBm DISTORTION 0 01 FREQ RESPONSE 140Hz 20kHz SENSITIVITY Mic inputs 3mV balanced Line inputs 100mV 1V OUTPUT CONNECTORS Line out 3 pin XLR balanced Switched...