Calaf Power, the biggest output power solid-state power amp, same design of power amplifing stage of Calaf. Massive toroidal transformer with independent secondary windings and a bank of eight 10,000uF electrolytic reservoir capacitors for each channel's main power supply. Both left and right channels are bulit as mono power amplifiers, each with seven pairs of high-current transistors mounted onto a thick copper bus bar. This is bolted onto the extruded heatsinking that's visible either side of this power amplifer.

Combined the advantage of class AB and the class A technology, the Cool Class A technology actually achieved same linear sound performance essentially but without normal need of big electrical current, as Class A does.