Galaxy Audio’s CORE Series X amplifiers are the product of rigorous engineering and the latest advances in technology. The Class H power supply configuration utilizes four output transistors, a low voltage pair and a high voltage pair. Its low voltage transistors are active with any signal. When demand on the amp exceeds the low voltage transistors’ capabilities, the high voltage transistors kick in and provide additional power. The result is an amplifier that runs cooler, weighs less, is smaller and more efficient.