TDA2050 Home Audio Amplifier Design -- 2

I want to build a clean-sounding, reliable TDA2050 power-amplifier stage for a home audio setup that will accept a purely digital source (e.g., DAC board, streaming receiver) as its input. The job is to... (Budget: $210 - $415 USD, Jobs: Audio Engineering, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Design and Layout, PCB Layout, Signal Processing)