Working on Zen 9

I am working on Pass's Zen 9.
My plan is to simplify the circuit by lowering the output power, and using high performance heatsink, from Pentium4.

VCC is reduced to 20V with extra idle current (2.5A), without active load. Output capacitor is one of the most expensive and critical device. By using BTL circuit, I am planning not to use output capacitor.

With the BTL topology, it does not require high voltage for the output stage. Only 25W (10V, 2.5A)is required.
I will report the process and the result asap.