HVA SERIES SWITCHING POWER PROFESSIONAL AMPLIFIER HVA1 & HVA4 User's Manual
IMPORTANT SAFETY INSTRUCTIONS – READ FIRST This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure. Voltage that may be sufficient to constitute a risk of shock. This symbol, wherever it appears, alert you to important operating and mainte instructions in the accompanying litera Please read manual. Read instructions: Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment.
INTRODUCTION The ART HVA Series 1 and 4 are class-D installation amplifiers. They are suitable for both 70/100V line installations (selectable through dip-switches). Each channel has its own gain control and LED indicators (signal, clip and protection). The input and output connections are made through Euroblock connectors. The amplifiers are a 1U rack 19-inch size is very appropriate for many types of installations, taking advantage of its multichannel design.
FRONT PANEL 1 7 6 7 4 5 1 6 4 3 2 5 3 2 1 Power Switch It switches ON/OFF the unit main power. 2 Level Control The Level controls allow you to adjust the volume level. 3 Power/Protect LED The power protect LED is Green for normal operation. And Red in protect mode. 4 Signal LED The Green LED light’s up when there is signal present in each respective channel. 5 Protection LED In normal operation, the LED will not illuminate; if the LED turns Red, it means the unit is in thermal protection.
REAR PANEL CHA CHB CHC CHD MODEL AC INPUT: 110-120V~50/60Hz 220-240V~50/60Hz CLASS 2 WIRING CHA CHB CHC CHD Fail DIS PRI GND GND Test SERIAL MADE IN CHINA 2 4 5 3 CHA CHB Use only with a 250V fuse 1 MODEL AC INPUT: 110-120V~50/60Hz 220-240V~50/60Hz CLASS 2 WIRING G CHA G CHB Fail DIS PRI GND GND Test SERIAL MADE IN CHINA Use only with a 250V fuse 1 AC Input This is the mains input for the HVA1/HVA4, The power cord supplied is determined by the Country of operation.
REAR PANEL 3 Euroblock Output Connect the amplifier to your speakers using these Euroblock. 4 Operation mode switch Select the operation mode (70V or 100V) on each channel moving the dip-switches to the desired position. 5 Exhaust Vents Air is drawn from front grilles, flowing through the unit and heat sink, and then exhausted via the rear vents. Do not block or impede the air flow through these vents.
APPLICATIONS This is a connection example. Thanks to it 4-channel/2-channel design, it is possible to separate 4 or 2 zones with different audio sources or to use the same audio on all zones.
WARRANTY INFORMATION Limited Warranty (USA only) 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.
SERVICE T h e f o l l o wi n g i n f o r m a t i o n i s p r o v i d e d i n t h e u n l i k e l y e v e n t t h a t y o u r u n i t r e q u i r e s servic e. 1. Be sure that the unit is the cause of the problem. Check to make sure the unit has power, all cables are connected correctly, and the cables themselves are in working condition. You may want to consult with your dealer for assistance in troubleshooting or testing your particular configuration. 2.
TECHNICAL SPECIFICATIONS Output Power (100V line) One channel drive HVA1(150W), HVA4 (300W*2) Output Power (70V line) One channel drive HVA1(150W), HVA4 (300W*2) All channel drive HVA1(135W *2), HVA4 (270W*4) All channel drive HVA1(135W*2), HVA4 (270W*4) Input sensitivity 0.9-1.1V ( 0+/-1dBV ) Input Impedance 20k Frequency response 120 Hz - 17 kHz (-3dB) Voltage gain (100V) 40 dB THD+N <0.
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