Redback A 4116 User manual

Redback® A 4116 15W Stereo Amplier
Operating Manual
OVERVIEW
The Redback A 4116 stereo amplier is super compact and ideally suited to smaller PA system installations.
Designed around the ST TDA7492 IC it offers virtual “destruction proof” operation even under sever misuse such as over
voltage, over temperature, over load and short circuit speaker line conditions. The unit will automatically shut down when
overloaded and will restore to normal operation when the fault condition is removed.
The A 4116 can be used as a stand alone/ bench mount amplier or can be rack mounted when used in conjunction with
optional hardware (H 4990).
FEATURES
• 15W RMS Output into an 8Ω load • 1 Stereo RCA input • 1 Music input (3.5mm)
• 1 Line/Sub output • 4-16Ω output • 24V DC operation
CONNECTIONS
Figure 1: Front Panel Layout
1) 3.5mm Input
2) Treble Control
3) Bass Control
4) Volume Control
5) Fault Indicator
6) Power Indicator
7) Power Switch
Figure 2: Rear Panel Layout
1) 24V DC Power Input
2) Speaker Connection
3) Line/Sub Output
4) Auxilliary Input
User manual revision number: 1.0 015/08/2019
Treble Bass Volume
Power
On
0
2
46
8
10
- +
Music Input
Timer
15W Stereo Amp
A 4116
Fault
- +
1 2 3 4 5 6 7
L
R
SPKR
RIGHT
SPKR
LEFT
++
__
www.altronics.com.au
Manufactured in Australia
By Altronic Distributors Pty. Ltd.
Line/Sub
Out
Aux In
24VDC
Input
+-
1 2 3 4

www.altronics.com.auRedback® Proudly Made In Australia2
Redback® A 4116 15W Stereo Amplier
All Australian made Redback products are covered by a 10 year warranty.
Should a product become faulty please contact us to obtain a return authorisation number. Please ensure you have all the
relevant documentation on hand. We do not accept unauthorised returns. Proof of purchase is required so please retain
your invoice.
Distributed by Altronic Distributors Pty. Ltd. Perth. Western Australia.
Phone: [phone] Fax: [phone] Internet: www.altronics.com.au
Figure 3: Connection Diagram
The gure below illustrates a typical installation.
Note: The Aux input will be disconnected when a source is connected to the 3.5mm music input on the front panel.
TROUBLE SHOOTING
DISTORTED OUTPUT
Check that the speaker type is correct for the output that you are using. Check for any short circuits on the speaker line.
VERY LOW OUTPUT
Make sure that the input is the correct level (check for shorted connectors). Check for any short circuits on the speaker line.
AMPLIFIER KEEPS ON CUTTING IN & OUT
Check speaker types, ratings and for any short circuits on the speaker line.
SPECIFICATIONS
Power Output: ................................15 watts RMS into 8Ω
Distortion: ...................................................< 3% @ 1kHz
Signal to Noise Ratio: ..Typically 75dB below rated output
Frequency Response
Aux input: ..........................................60Hz - 15kHz, -3dB
Music Input: .................................................................1V
Aux Input:.....................................................................1V
Output Connectors
Speakers: ..................................................Screw terminals
Output impedance: ................................................4-16Ω
Input Connectors
Aux input:..............................................RCA stereo socket
Music input:.................................................3.5mm socket
24V DC power: ..........................2.1mm DC Jack connector
Controls: ....................Volume, Bass, Treble, ON/OFF switch
Indicators: ......................................................Fault, Power
MISC.
Power supply:........................................................24V DC
Weight: ..................................................................≈0.5kg
Dimensions:...............................≈210W x 140D x 44H mm
Colour: .......................................................................Black
DC Protection: ................................ Internal 2A 3AG Fuse
*Specications subject to change without notice
L
R
SPKR
RIGHT
SPKR
LEFT
++
__
www.altronics.com.au
Manufactured in Australia
By Altronic Distributors Pty. Ltd.
Line/Sub
Out
Aux In
24VDC
Input
+
-
24V DC Plugpack
(Minimum 1A)
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