HVA SERIES
www.artproaudio.com
www.yorkville.com
E-mail: support@artproaudio.com
© 2020 Applied Research & Technology / Yorkville Sound
SWITCHING POWER
PROFESSIONAL AMPLIFIER
HVA SERIES AMPLIFIERS
Switching Power Professional Amplieers
HVA-5004-101
HVA1 & HVA4
User's Manual
Read instructions: Retain these safety and operating instructions for future reference. Heed all
warnings printed here and on the equipment. Follow operating instructions printed in this user guide.
Do not open: There are no user serviceable parts inside. Refer any service work to qualified technical personnel
only.
Power sources: Only connect unit to mains power of type marked on rear panel. Power source must provide a
good ground connection.
Power cord: Use the power cord with sealed mains plug appropriate for your local mains supply as provided with
the equipment. If the provided plug does not fit into your outlet consult your service agent. Route the power cord
so that it is not likely to be walked on, stretched or pinched by items placed upon or against.
Grounding: Do not defeat the grounding and polarization means of the power cord plug. Do not remove or tamper
with the ground connection on the power cord.
Ventilation: Do not obstruct the ventilation slots or position the unit where the air required for ventilation is
impeded. If the unit is to be operated in a rack, case or other furniture ensure that it is constructed to allow
adequate ventilation.
Moisture: To reduce the risk of fire or electrical shock do not expose the unit to rain, moisture, or use in damp or
wet conditions. Do not place a container of liquid on it, which may spill into any openings.
Heat: Do not locate the unit in a place close to excessive heat or direct sunlight, as this could be a fire hazard.
Locate the unit away from any equipment, which produces heat such as: power supplies, power amplifiers and
heaters.
Environment: Protect from excessive dirt, dust, heat, and vibration when operating and storing. Avoid tobacco
ash, drink spillage and smoke, especially that associated with smoke machines.
Handling: To prevent damage to the controls and cosmetics avoid rough handling and excessive vibration.
Protect the controls from damage during transit. Use adequate padding if you need to ship the unit. To avoid injury
to yourself or damage to the equipment take care when lifting, moving or carrying the unit.
Servicing: Switch off equipment and unplug the power cord immediately if it is exposed to moisture, spilled liquid,
objects fallen into opening, the power cord or plug becomes damaged during a lightning storm, or if smoke odor or
noise is noted. Refer servicing to qualified technical personnel only.
Installation: Install the unit in accordance with the instruction printed in the user manual.
IMPORTANT SAFETY INSTRUCTIONS – READ FIRST
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.
1
Output Power
(100V line)
One channel drive
All channel drive
HVA1(150W), HVA4 (300W*2)
HVA1(135W *2), HVA4 (270W*4)
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.
Output Power
(70V line)
One channel drive
All channel drive
Input sensitivity
Input Impedance
Frequency response
Voltage gain (100V)
THD+N
S/N rate
Crosstalk
Damping factor
Power output circuitry
Power supply
Protections
Connectors
Controls
HVA1(150W), HVA4 (300W*2)
HVA1(135W*2), HVA4 (270W*4)
0.9-1.1V ( 0+/-1dBV )
20k (balanced) 10k (unbalanced)
120 Hz - 17 kHz (-3dB)
40 dB
<0.1%
>95 dB
>70dB
>200
Switching power, Class-D
AC 110-240V, 50/60 Hz
Short circuit, open circuit, thermal, ultrasonic and RF
INPUT & OUTPUT: Euroblock
Front: AC switch, Input level control for each channel
Rear: 70V/100V selector
Features:
• High current switching power allowing high power output with low noise and
low distortion
• Short circuit, thermal and power on/off muting protection
• Built-in limiter
• Euroblock input and output
• Front mounted gain controls for easy access
• Signal, Clip protect, and Power LED indicators to monitor performance.
• Disable Amplifier Outputs remotely
• Priority, remote test trigger
• Remote Failure Status indicator
• 2-channel or 4-channel installation amplifier.
• 70/100V line operation.
• Power output (70/100V): 2X150W/4X300W
• 1 U rack 19-inch size.
• Switching power, class-D amplifier.
Indicators
Dimensions (WxHxD)
Weight
SIGNAL: green LED CLIP: red LED POWER: green LED
PROTECTION: red LED PRIOR:green/red LED
19.02x1.73x14.17(inch) 483x44x360 (mm)
HVA1 10.36 lb, 4.7 kg HVA4 13.67 lb, 6.2 kg
9
2
FRONT PANEL
The following information is provided in the unlikely event that your unit requires
service.
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. 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.
4. If you are returning the unit for service, pack the unit in its original carton or a
reasonable substitute. The original packaging may not be suitable as a shipping
carton, so consider putting the packaged unit in another box for shipping. Print
the RA number clearly on the outside of the shipping box. Print your return
shipping address on the outside of the box.
5. Include, with your unit, a note with the RA number and your contact information,
including a return shipping address (we cannot ship to a P.O. box) and a daytime
phone number, and a description of the problem, preferably attached to the top
of the unit. Also include a copy of your purchase receipt.
Please fill in the following information for your reference:
Date of purchase: __________________________________
Purchased from: __________________________________
Serial Number: __________________________________
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SERVICE
11
77
44
11
Power Switch
1
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.
Signal LED
4
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. The speaker load disconnects from the amplifier outputs when this occurs.
The thermal temperature must be reduced either by ventilation and/or the input signal level is
reduced. When the amplifier is at a safe operating temperature the output protection circuitry
will then connect to the outputs and the amplifier will resume normal operation.
6
Clip LED
The Red LED lights up when the input signal is too high.
7
Air Intake Vents
HVA1/HVA4 has a variable speed internal cooling fan. This allows the air to
flow through front grill to keep the amlifier cool even under extreme operating
conditions. Please keep these vents clear and free from any obstructions to
insure proper cooling.
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55
44
55
33
22
33
22
3
8
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 com ponents thereof will be free from defects in workmanship and
materials for a period of three years from the date of purchase. Applied Research and
Technology will, without charge, repair or replace, at its option, defective product or
component parts upon prepaid delivery to the factory service department or authorized
service center, accom panied by proof of purchase date in the form of a valid sales
receipt.
Online Registration
We recommend that you register your product online to insure prompt warranty repair servicing on any
repair issues. Please go to www.artproaudio.com. Select “Support”, then "Product Registration” input your
information here.
Exclusions
This warranty does not apply in the event of misuse or abuse of the product or as a result
of unauthorized alterations or repairs. This warranty is void if the ser ial number is
altered, defaced, or removed.
A R T reserves the right to make changes in design or make additions to or improvements
upon this product without any obligation to install the sam e on products previ ously
manufactured.
A R T shall not be liable for any consequential damages, including without limitation
damages resulting from loss of use. Some states do not allow limitations of incidental or
consequential damages, so the above limitation or exclusion may not apply to you. This
warranty gives you specific rights and you may have other rights, which vary from state to
state.
For units purchased outside the United States, an authorized distributor of Applied
Research and Technology will provide service.
WARRANTY INFORMATION
REAR PANEL
2
AC Input
1
CHA CHB CHC CHD
CLASS 2 WIRING
TestTest
CHACHA
CHBCHB CHCCHC
GG
CHA
CHB
Fail
GNDGND
GNDGND
PRIPRI
DISDIS
CHDCHD
FailFail
4
3
CLASS 2 WIRING
PRI
Test
DIS
GND
GND
CHA
MODEL
SERIAL
AC INPUT:
110-120V~50/60Hz
220-240V~50/60Hz
MADE IN CHINA
5
CHB
MODEL
SERIAL
AC INPUT:
110-120V~50/60Hz
220-240V~50/60Hz
MADE IN CHINA
This is the mains input for the HVA1/HVA4, The power cord supplied is determined by the
Country of operation.
2
Euroblock input
CH A thru D +: Balanced signal input + or unbalanced signal input
CH A thru GND: Signal GND
CH A Thru D: Balanced signal input - or unbalanced signal not connect
Use only with a 250V fuseUse only with a 250V fuse
Use only with a 250V fuseUse only with a 250V fuse
Use only with a 250V fuseUse only with a 250V fuse
1
Use only with a 250V fuse
7
Fail: Failure Status output:
This output is low (0V) if either the unit is disabled or in Protect mode
This output is normally high (+5V)
DIS: The amplifier’s input is disabled
The disable pin is normally (+5V). When this pin is grounded the amplifier is disabled and all of
the Protection lights will light.
Make sure to disable the unit or power in down, when connecting or disconnecting the speaker loads.
PRI: Input Priority Control PIN
The Priorty control pin is normally (+5V). When PRI pin is grounded, The TEST input has priority,
at this time the Level pot knobs will change from GREEN to RED.
GND: Signal GND and control GND.
TEST: Input Priority test/alarm signal
When the Priority is connected to gnd, the Test/alarm signal will override all input signals and
will be present on all the outputs
4
REAR PANEL
APPLICATIONS
Euroblock Output
3
Connect the amplifier to your speakers using these Euroblock.
Operation mode switch
4
Select the operation mode (70V or 100V) on each channel moving
the dip-switches to the desired position.
Exhaust Vents
5
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.
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.
150W/300W
MODEL
SERIAL
CHACHA CHBCHB CHCCHC CHDCHD
Test/alarm
FailFail
DISDIS
PRIPRI
Priortity Control
150W/300W
CLASS 2 WIRING
GNDGND
GNDGND
TestTest
150W/300W
CHA CHB CHC CHD
150W/300W
Test/alarm
CHA
CHB
CLASS 2 WIRING
GG
CHA CHB
Fail
DIS
PRI
GND
GND
Test
Priortity Control
150W/300W
5
6
MODEL
SERIAL
150W/300W
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