Chu the hum is almost gone now. The most significant difference came from shielding the transformer with mu-metal. Its a non issue now. I didnt measure the capacitance or resistance of any of the components. I just made sure they were of the same exact specification as the components I replaced...
I have no idea what amount of phase error is audible or even if its audible in the conventional sense. I would think phase distortions would affect the placement of instruments across the soundstage and so it would be hard to measure/hear the differences between various tube and SS gear. What...
The output impedance on my proceed amp is 0.05 ohms from 20-20KHz implying a dampening factor of 160 yet its bass is more taut and defined than most other amps whos dampening factors are greater than 800 (for example all of Rotels and Parasounds and ATIs etc.) So just the dampening factor doesnt...