Related Manuals for HPA SY-A4120
Summary of Contents for HPA SY-A4120
- Page 1 Owner’s Manual SY-A4120 MULTI-ZONE POWER AMPLIFIER 502-SYA4120B-2967_02.indd 1 2011/5/16 11:36:31...
- Page 2 WARNING 502-SYA4120B-2967_02.indd 2 2011/5/16 11:36:33...
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Page 3: Table Of Contents
Table of Contents SY-A4120 Table of Contents Introduction ………………………………………………………… 2 Features ……………………………………………………………… 3 Front Panel Controls ………………………………………………… 4 Rear Panel Controls ………………………………………………… 5 Connections ................6 System Set Up ..……………………………………………………… 7 Output Wiring Guide ..............8 Specifications ..……………………………………………..……… 9 Block Diagram ……………………………………………………… 10 502-SYA4120B-2967_02.indd 1... -
Page 4: Introduction
PA systems, the SY-A4120 will deliver reliable power. The Its’ advanced technology, clear sound and reliable performance makes them ideal for any small PA or any distrib- uted sound system installation. -
Page 5: Features
Features SY-A4120 Features The HPA SY-A4120 power amplifiers have been developed using the latest technology in Class D power amplifier design. Here are some of their main features: • The amplifier delivers 120 watts of clean power per channel at 70/100 volts and 4 Ohms, with 4 x 120 watts. • Class D amplifier operating at 85% efficiency using universal power supplies with power factor correction and capable of operating from 100-240 V, 50 or 60 Hz. The SY-A4120 amplifiers generate virtually no heat and thanks to their low current draw. • Built-in 70/100 volt output transformers with flat frequency response from 40Hz to 20kHz provide constant voltage for distributed speaker systems. • Independent input level controls for each channel allow precision adjustments and the included security panel provides protection from unwanted adjustment. -
Page 6: Front Panel Controls
4. Protection LED - This goes on for approximately one second, whenever the SY-A4120 is powered on and then turns off . The Protection LED will also light when overheating or other severe problems occur. It is normal for the Protection LED to fade slowly when the amp is powered off. -
Page 7: Rear Panel Controls
1. Fan - This internal fan provides vital cooling to level controls are set to their fully clockwise your SY-A4120. Make sure that both the front and position, the Amplifier delivers full power rear panels are kept free of all obstructions and output. -
Page 8: Connections
Connections SY-A4120 Connections The following diagrams illustrate various wiring set ups for 4 ohm, 8 ohm and 70 Volt operation. SPEAKER OUTPUT WARNING CAUTION ADJUST ADJUST ADJUST ADJUST DO NOT EXPOSE FOR CONTINUED 400Hz 400Hz 400Hz 400Hz CH 2 CH 1... -
Page 9: System Setup
System setup The following is a typical constant voltage system setup for a small restaurant using the HPA Preamplifier power amplifier along with an S zone feeding several audio zones with paging and music. The first two channels are con- nected to four wall-mounted speakers in each of the Dining Rooms with their transformers set to a 25 watt tap. -
Page 10: Output Wiring Guide
Output Wiring Guide SY-A4120 Output Wiring Guide There are several ways to interface the amplifers, depending on your exact system set-up. For most small installation 14 to 16 gauge zip cord can be used for most small to medium size installations. Follow the cable diagrams below for connecting to the input of your amplifier. 4 and 8 Ohm Wiring Guide 100 V 70 V 25 V (5.2 4 OHM 25 Volt Wiring Guide 100 V 70 V 25 V (5.2 4 OHM 70 Volt Wiring Guide... -
Page 11: Specifications
Specifications SY-A4120 Specifications All channels driven 8 ohms ..........65 Watts 4 ohms . -
Page 12: Block Diagram
Block Diagram SY-A4120 Block Diagram 502-SYA4120B-2967_02.indd 10 2011/5/16 11:36:49... - Page 13 SY-A4120 502-SYA4120B-2967_02.indd 11 2011/5/16 11:36:49...
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- Page 15 SY-A4120 502-SYA4120B-2967_02.indd 13 2011/5/16 11:36:49...
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