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Redback
A 4450 4 x 4 Audio Matrix/Switcher
®
20.0 FIRMWARE UPDATE
It is possible to update the A 4450 firmware by downloading updated versions from www.altronics.com.au or
redbackaudio.com.au. To perform an update, follow these steps.
1. Download the Zip file from the website.
2. Remove the Micro SD card from the A 4450 and insert it into your PC.
3. Extract the contents of the Zip file to the root folder of the SD Card.
4. Rename the extracted .bin file to "update.bin" (without exclamation marks) .
5. Remove the SD card from the PC following windows safe card removal procedures.
6. With the power turned off, insert the SD card back into the A 4450.
7. Turn power on to the A 4450. The unit will check the SD card and if an update is required the A 4450 will perform the
update automatically.
For updating firmware on the wallplates and paging console (A 4461, A 4462, A 4463, A 4464, A 4660), refer to the
relevant instruction manual.
21.0 SPECIFICATIONS
DISTORTION:
FREQ. RESPONSE:
INPUT SENSITIVITY
Mic inputs:
Line inputs:
OUTPUT SENSITIVITY
Outputs:
OUTPUT CONNECTORS
Balanced out:
AUX out:
INPUT CONNECTORS
Inputs:
3 pin euro connectors or 2 x RCA
24V DC power:
24V DC Power:
20
Redback® Proudly Made In Australia
0.01%
140Hz - 20kHz
3mV - 0.7V balanced
100mV-1V
3mV-1V
3 pin euro connectors
-
+
2 x RCA
Screw terminals
2.1mm DC Jack
-
CONTROLS:
Input Selectors:
Power:
Volume:
WallPlates & Paging Console
Output Connection:
Data Transmission:
INDICATORS: Power on,Signal Present,VU Meter
POWER SUPPLY:
DIMENSIONS:
WEIGHT:
COLOUR:
+
* Specifications subject to change without notice
Switch
Power/Standby Switch
Front Panel Knob
2 x RJ45 8P8C
Cat5e cabling max 200m
24V DC 2A
≈482W x 125D x 44H
≈2.1 kg
Black
www.redbackaudio.com.au
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