This is the PCB of a single channel power amplifier. The circuit is with reference to " Krell KAV300i schematic " found on the internet. We modified the circuit a little bit to make it more suitable for diy purpose. The circuit requires good matching of the input transistors for minimum DC drift. Circuit features : 1. symmetrical complementary input ( as in other older Krell design such as KSA50/KSA100) ; 2. No-NFB at the power output stage ; 3. Compact size PCB ( not to mean the circuit to be simple !) PCB thickness 1.6mm. We do air shipping worldwide at US$4.00.
This is a single channel board. For stereo application two pieces are required.