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Summary of Contents for Art Project Series
- Page 1 HeadAmp 4 Pro Five Channel Headphone Amp with Listen and Talkback Project Series User’s Manual IMPORTANT SAFETY INSTRUCTIONS – READ FIRST...
- Page 2 This symbol, wherever it appears, This symbol, wherever it appears, alerts alerts you to the presence of uninsulated you to important operating and maintenance dangerous voltage inside the enclosure. Voltage instructions in the accompanying literature. that may be sufficient to constitute a risk of shock. Please read manual.
- Page 3 TABLE OF CONTENTS INTRODUCTION ...................... 1 OVERVIEW ......................1 SETTING UP......................1 Unpacking ............................ 1 AC power hookup ......................... 2 Powering up ..........................2 FRONT PANEL CONTROLS & INDICATORS............. 3 External mic jack .......................... 3 Power switch ..........................3 Talkback control..........................3 Output controls ..........................
- Page 5 INTRODUCTION Thank you for purchasing Applied Research and Technology’s HeadAmp 4 Pro. After getting familiar with the HeadAmp 4 Pro, you’ll realize what a great investment you’ve just made. The HeadAmp 4 Pro is a unique product. It contains five high quality headphone amps and adds talkback to any one or all of the outputs as well as the ability to monitor or mix any input to a special output.
- Page 6 AC power hookup The HeadAmp 4 Pro has an external power supply designed to minimize noise and operate at 100 to 125VAC, 50 to 60Hz. The unit requires a 9VAC power supply rated for at least 1000mA. Audio connections 1/4" Audio connections to and from the HeadAmp 4 Pro are stereo ¼-inch TRS (except for the Main Right input which can accepts a single channel only).
- Page 7 FRONT PANEL CONTROLS & INDICATORS Figure 1 - Front view External mic jack The external mic jack is a balanced mic level input. This input is intended for use with a dynamic or phantom powered microphone. It will not accept line level inputs without clipping. The external mic input provides +48V on pins 2 and 3 for condenser mics while safely supporting the use of dynamic mics.
- Page 9 Talk switches The four Talk switches are used to direct the talkback mic to individual channels. These switches are momentary and slightly mute their respective input signal when passing through the talkback audio. Talk All switch Depressing the Talk All switch is the same as depressing ALL of the Talk switches plus it enables talkback into the Listen output.
- Page 10 REAR PANEL FUNCTIONS Figure 3 - Rear view Power Connect the power supply provided with your unit to this jack. The HeadAmp 4 Pro is designed for use with a 9V AC power supply rated at 1000mA. Using a DC power supply will not work. Using a power supply of greater voltage may damage your unit.
- Page 11 Listen output The Listen output jack can drive headphones as well as line level inputs. The Listen control on the front of the unit controls the volume of all of the audio present on this output. This output contains either the Main input audio or the Listen input signal if this jack is used. It also carries the audio present on Aux inputs with a lit Listen LED.
- Page 12 APPLICATIONS Recording The HeadAmp 4 Pro is at home in the modern studio. Since most current setups have little in the way of analog processing like a mixer, The HeadAmp 4 Pro fills in the gap. The talkback feature allows everyone to keep the headphones on and still communicate.
- Page 13 WARRANTY INFORMATION Limited Warranty Applied Research and Technology will provide warranty and service for this unit in accordance with the following warrants: Applied Research and Technology (A R T) warrants to the original purchaser that this product and the components thereof will be free from defects in workmanship and materials for a period of three years from the date of purchase.
- Page 14 2. If you believe that the ART unit is at fault, go to www.artproaudio.com. 3. Select “Support”, then “Return Authorization Request” to request a return authorization number.
- Page 15 SPECIFICATIONS Input Connections ¼-inch stereo TRS (except Main Right input which is TS only) Input Impedance ¼-inch >10K Ohms XLR input 2K Ohm Maximum Input Level ¼-inch +18 dBu Maximum external mic input +2dBu (balanced) Output Connections ¼-inch stereo Output Impedance 47 Ohms Max Output Level +15dBu unloaded, 100mW/channel @ 30 to 100 Ohm load...
- Page 17 E-mail: support@artproaudio.com 2018 Applied Research & Technology/ Yorkville Sound HeadAmp 4 Pro H4P-5004-103 Project Series...
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