HiFi DC-ATX Power Supply with low noise and excellent ripple rejection

This PSU should have very low noise and excellent ripple rejection Full PCB design build and test Delivery of a fully working PCB Kindly test your circuit practically at your end and after the successful testing only you should deliver it to me. Finally I want detailed technical report containing the explanation of your circuit diagrams and how you calculated the values of each and every component and its working in the circuit. Ideally the PCB should fit inside a standard PC PSU enclosure.