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Operating Manual

A 4017

 

 15 Watt Amplifier

Redback® Proudly Made In Australia 

OVERVIEW

The redback A 4017 PA Amplifier is super compact and ideally suited to smaller PA System Installations. Designed around 
the TDA1519C IC it offers virtual “destruction proof” operation even under severe misuse such as over voltage, over 
temperature, over load and short circuit speaker line conditions. The amplifier is extremely stable even when microphone 
and speaker cables are run together over long distances. The unit will automatically shutdown when overloaded and will 
restore to normal operation when the fault is removed.

FEATURES

• 15W RMS Output 

 

 

 

 

• Headphone Socket

• 1 balanced XLR and unbalanced jack mic input   

• Selectable 12V DC Phantom Power on Mic Input

• 1 Auxiliary Input 

 

 

 

 

• Music Input on Front Panel

• 4-16Ω

 

Output  

 

 

 

 

• Selectable Aux Input Sensitivity

• 12V DC operation 

 

 

 

 

• Power Status Indicator

POWER SUPPLY

The amplifier operates on 12V DC, which makes it suitable for use in vehicles which run of 12V DC. Ensure power is 
switched OFF at the front panel before connecting power. 

AUDIO CONNECTIONS

Audio input is via a 3 pin balanced XLR socket on the rear of the unit or a 6.5mm jack on the front of the unit, both of 

which are for a low level Microphone Input. Both of these inputs are controlled by the Mic volume control on the front of 
the unit. Phantom power is available for these inputs selectable by the DIP switches on the rear of the unit.
Dual RCA sockets on the rear of the amplifier, and a 3.5mm Jack input on the front of the amplifier for portable devices 
such as mobile phones and music players, provide a line level audio input. Both of these inputs are controlled by the Aux 
volume control on the front of the unit. The sensitivity of this input is selectable via the DIP switches on the rear of the 
unit.

SPEAKER CONNECTIONS

Speakers with a total impedance or 4-16Ω may be connected to the terminals marked 4-16Ω on the rear of the amplifier. 
The speaker outputs are internally protected by polyswitches which will disconnect the speaker line when over-driven. 

User manual revision number: 1.2 16/05/2019

Summary of Contents for A 4017

Page 1: ...suitable for use in vehicles which run of 12V DC Ensure power is switched OFF at the front panel before connecting power AUDIO CONNECTIONS Audio input is via a 3 pin balanced XLR socket on the rear of the unit or a 6 5mm jack on the front of the unit both of which are for a low level Microphone Input Both of these inputs are controlled by the Mic volume control on the front of the unit Phantom pow...

Page 2: ...upplied for this purpose Please observe the polarity 3 12V DC Input Backup Connects to a 12V DC supply with at least 2 Amp current capacity Please observe the polarity 4 Speaker Output Connect this to the speakers The Impedance of the speaker load must be between 4 16Ω 5 Headphone Output This is a standard stereo headphone output which takes a 3 5mm Jack connector 6 Aux Input This is a dual RCA in...

Page 3: ... line is not shorted Check speaker types ratings and if on correct output Amplifier Keeps on Cutting In Out Check speaker types ratings and for any short circuits on the speaker line 1 2 3 4 5 6 Timer 15 Watt amplifier A 4017 Power On Mic Input 0 2 4 6 8 10 Mic Aux 0 2 4 6 8 10 Music Input Fig 2 shows the layout of the A 4017 front panel Fig 2 FRONT PANEL GUIDE 1 Mic Input This is an unbalanced mi...

Page 4: ...e industry leading DECADE warranty It s because of a long tried and tested history of bullet proof reliability We ve heard PA contractors tell us they still see the original Redford amplifier still in service in schools that s over 37 years of operation and still going strong Should a product become faulty please contact us to obtain a return authorisation number Please ensure you have all the rel...

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