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Cheap hi-end amplifier
by Andrea Ciuffoli - started in the April 2010 - last update June 2012


This amplifier is used in my Cheap System 3 of my sister Stefania, here some update to integrate a dc protection and power supply fuses after a mosfet fault.

The DC protection use 2 x automotive pcb relay Onron G8SN and in series with each power supply has been inserted a 5A fast with a led to check the status of each line.