Redbackaudio.com
User Manual for REDBACK models including: A 4017 PA 15W Public Address Amplifier, A 4017, PA 15W Public Address Amplifier, Public Address Amplifier, Address Amplifier
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DocumentDocumentRedback® A 4017 15Watt Amplifier Operating Manual A 4017 15 Watt Amplifier 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 · 1 balanced XLR and unbalanced jack mic input · 1 Auxiliary Input · 4-16 Output · 12V DC operation · Headphone Socket · Selectable 12V DC Phantom Power on Mic Input · Music Input on Front Panel · Selectable Aux Input Sensitivity · 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 4-16 may be connected to the terminals marked 4-16 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: 1.3 18/05/2021 www.redbackaudio.com.au Redback® Proudly Made In Australia 1 Redback® A 4017 15Watt Amplifier REAR PANEL GUIDE Fig 1 shows the layout of the A 4017 rear panel. Mic Input Mic 46 Aux 46 2 8 2 8 Music Input On 0 10 0 10 A 4017 T1im5 Weratt amplifier Powe 12 3 45 6 Fig 1 1 DC Fuse (3A M205) This fuse protects the internal power supply. Replace with M205 3A rated fuse only. 2 12V DC Input (Main Supply) Connects to a 12V DC supply with at least 2 amp current capacity. An M 8936 12V, 2Amp plugpack is supplied 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 4-16. 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 input which is internally mixed to produce a mono input signal. The input sensitivity is adjustable to 200mV or 1V. 7 DIP Switches These DIP switches set the phantom power to the microphone input and adjust the Aux input sensitivitty. (See DIP switch settings for more detail.) 8 Mic Input This is a balanced XLR microphone input. DIP SWITCH SETTINGS DIP Switch Settings SW On Off 1 AUX Input AUX Input Sensitivity 1V Sensitivity 200mV 2 Not Used 3 Not Used 4 Mic Phantom Power On Mic Phantom Power Off 2 Redback® Proudly Made In Australia www.redbackaudio.com.au FRONT PANEL GUIDE Fig 2 shows the layout of the A 4017 front panel. Redback® A 4017 15Watt Amplifier Made in Australia by Altronic Distributors Pty Ltd www.altronics.com.au DIP Switch Settings SW On Off 1 AUX Input AUX Input Sensitivity 1V Sensitivity 200mV 2 Not Used 3 Not Used 4 Mic Phantom Power On Mic Phantom Power Off 12VDC 12VDC 4-16 DC FUSE Input Input Out (3A M205) - + +_ +_ L DIP Switches R 12 3 4 Aux input 21 3 Mic Input 1 2 34 5 6 7 8 Fig 2 1 Mic Input This is an unbalanced microphone input which is mixed with the Mic Input on the rear of the unit. 2 Mic Volume use this to adjust the microphone input/s volume. 3 Aux Volume use this to adjust the Aux and Music input's volume. 4 Music Input Use this input to connect a portable music player. This input will mix with the Aux input on the rear of the unit and is adjusted via the Aux volume control. 5 On Indicator This led indicates the unit has power. 6 Power Switch Use this to turn the unit on. TROUBLE SHOOTING If the REDBACK 15W amplifier fails to deliver the rated performance, check the following: No Power, No Lights Make sure amplifier power switch is on. Check the DC fuse. Replace with only the correct type and rating. Over rated fuses will invalidate warranty. Distorted Output Check that the speaker type is correct for the output that you are using (ie. 4-16). Check for any short circuits on the speaker line. Very Low Output Volume Make sure that the input is the correct level (check for shorted connectors). Check for any short circuits on the speaker line. Continually Blows Fuses Make sure that the speaker 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. www.redbackaudio.com.au Redback® Proudly Made In Australia 3 Redback® A 4017 15Watt Amplifier SPECIFICATIONS POWER OUTPUTS OUTPUT CONNECTORS A 4016: ..............................15 watts RMS @ 13.8V into 4 Speakers: ....................................................Screw terminals Distortion:.....................................................< 3%, @ 1kHz Headphones: .................................................3.5mm socket SIGNAL TO NOISE RATIO typically 75dB below rated output FREQUENCY RESPONSE Mic inputs:............................................50Hz - 12kHz, -3dB Line inputs: ..........................................50Hz - 20kHz, -3dB SENSITIVITY Mic inputs: Rear..........................................1.5mV balanced Front....................................1.5mV unbalanced Line inputs:..........................................................200mV/1V CONTROLS Mic inputs: ..............................................................Volume Line inputs:..............................................................Volume Power: ...........................................................On/off switch Indicators:..................................................................Power INPUT CONNECTORS Mic Inputs: ............................................3 pin XLR balanced ...............................or 6.35mm jack unbalanced Aux input:...............................................RCA stereo socket Music Input:........................................3.5mm stereo socket 12V DC power:............................................Screw terminals ........................................or 2.1mm DC Jack CURRENT DRAW: ....................................... Min 60 mA ......................................... Max 1.7A FUSE PROTECTION: .............................................. 3A DC DIMENSIONS: ................................. 210W x 140D x 44H WEIGHT:............................................................... 0.38kg COLOUR:....................................................................Black *Specifications subject to change without notice Since 1976 Redback ampliers have been manufactured in Perth, Western Australia. With over 45 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support. We believe there is signicant added value for customers when purchasing an Australian made Redback amplier or PA product Australian Made Status All Redback house products will now be sporting the ofcial Australian Made logo. Since 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 the word out to local and export markets that our products carry the official compliance seal of the Australian Made campaign. We have always pushed our `local is better' line in all of our marketing efforts, it's always an added boost when you are backed up by a widely recognised and respected icon. Industry leading 10 year warranty. There's a reason we have the industry leading DECADE warranty. It's because of a long tried and tested history of bulletproof reliability. We've heard PA contractors tell us they still see the original Redford amplifier still in service in schools that's over 40 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 relevant documentation on hand. We do not accept unauthorised returns. Proof of purchase is required so please retain your invoice. 4 Redback® Proudly Made In Australia www.redbackaudio.com.au