This listing is two pieces( L and R channel) of bare PCBs of a pure class A MOSFET amplifier, output power 60W at 8 ohms loading based on Aleph 5 SE power amplifier. The design features single-ended MOSFET class A output, loaded with constant current source for excellent linearity and dynamic performance. Using 6 pieces of power MOSFETs, 3 pieces as output and 3 pieces as current source, the amplifier can offer 60W of uncompromised class A power. The boards are designed in a mirrored manner so that the left and right channel can be mounted on the left and right side of a chassis with huge finned type heatsink or similar. The boards are fabricated with 2mm thick fibre glass(FR4) , super thick copper, gold-plated and double sided solder resist coating for best reliability and durability. PCB dimension : 283mm x 68mm ( each channel). PCB thickness : 2mm. Copper thickness : 75um -- FOUR times normal process of copper thickness. Gold plated surface. We provide schematic and part list to buyers by EMAIL( to be attached with the shipment notice). We do air shipping worldwide at US$8.00. We welcome combine shipping. Powered by SoldEazy