Energy Series
High Performance Power Amplifiers

Product Information

Energy 2 and Energy 3 power amplifiers have been created to satisfy all the exacting requirements of high-standard professional applications such as big indoor and outdoor concerts and large-scale permanent installations.
In Energy 2 and Energy 3, Generalmusic has exploited the most advanced design concepts currently available in the field, using output transistors of the latest generation, top-quality circuitry and avant-garde solutions for double-stage power supply, heat dissipation and protection systems.
Energy 2 and Energy 3, constructed to Class AB standards with bipolar transistors in plastic casing, have a floating bridge configuration that allows extraordinarily high power outputs to be obtained even with very low impedances, giving excellent dynamics and minimal distortion levels.

Output Power

Energy 3 (3 rack units) supplies up to 1500W per channel at 4 Ohms, and 3000W in mono configuration (bridge) at 4 Ohms.

Energy 2 (2 rack units) supplies up to 1000W per channel at 4 Ohms, and 1800W in mono configuration (bridge) at 4 Ohms.

Double-Stage Power Supply Circuit

The double-stage power supply circuit guarantees higher efficiency with respect to amplifiers using conventional systems. In fact, the transformer provides only the voltage necessary for the power output required at any given moment, optimizing amplifier yield and drastically reducing the amount of energy lost as heat.

Cooling System

The cooling system used in Energy 2 and Energy 3 includes two separate heat sinks in tin-plated copper, almost twice as efficient as traditional heat sinks.

A sophisticated control circuit measures the temperatures recorded by sensors located directly on the sinks, and varies the speed of the two large-diameter cooling fans to ensure that the flow of air is always exactly right for the operating conditions. If necessary, the control circuit also gradually reduces the power supplied to the output transistors, and activates a limiter that attenuates the level of the input signal.

When conditions return to normal, the amplifier starts gradually working at full power again.

Protections

Energy 2 and Energy 3 guarantee total safety in even the harshest operating conditions, thanks to a comprehensive series of systems that protect the amplifier itself and the speaker units connected to it.

Loudspeaker protection: eliminates current peaks that could damage speakers in the case of malfunctions.

Thermal protection on the output transistors.

SOA (Safe Operation Area) processor: checks that the output transistors are always operating in maximum safety conditions.

Current protection on the output transistors: limits output current in the case of short circuits or overloads at the level of the output transistors.

Thermal protection on transformer: in the case of thermal overload, a cut-out disconnects the loading on the transformer until the temperature returns to normal levels.

Anti-clipping: a limiter checks the level of input signals and instantaneously cuts the ones that could cause the amplifier to clip, at the same time guaranteeing the maximum power output.

Copyright © 1997 Generalmusic S.p.A.