Work - PA 4500 L

The WORK PA 4500L is a professional four-channel amplifier designed for public address systems requiring high power output across multiple speaker lines. Each channel delivers up to 500 W and operates on 70 V or 100 V networks, with the operating mode selected via DIP switches.

Its Class D architecture, combined with a switching power supply, allows four amplifier modules to be housed within a single-unit-high 19-inch rack chassis. This design provides high amplification capacity whilst minimising the space occupied in a technical rack.

Each output has an independent volume control, allowing the level of each connected zone to be adjusted separately. The LED indicators on each channel allow the user to monitor signal activity, the occurrence of clipping or the activation of a protection circuit.

Audio connections are made via Euroblock terminal blocks for inputs and outputs, suitable for professional installations requiring fixed and secure cabling. The amplifier incorporates several electronic protection features designed to safeguard the unit and the associated loudspeakers: protection against short circuits, open circuits, excessive temperatures, ultrasonic signals and radio-frequency interference.

With its high power output and four independent channels, the WORK PA 4500L is suitable for distributed sound systems requiring high amplification, such as shopping centres, public facilities, transport hubs, industrial buildings or large spaces equipped with 70/100 V public address systems.