Equitech with digital only?

All power power supplies inject noise into the signal. Analog signals are continuous. Therefore, they are continuously subjected to power supply noise. Digital signals are retimed (chopped up). Essentially, their signal integrity is restored every step of the way. Digital signals are inherently immune to noise.

Axel. I appreciate what you say but Equitech 2Q yields improved sound. Any ideas why?

Knghifi, thanks for info. What did you replace your Equitech with?

Hi Axle. Just reading about the Berkely Alpha Dac 2. They mentioned they improved isolation technologies, among other things; and Robert Harley found it significantly better than the first version. If the bits are always perfect why so much concentration on electrical isolation amongst top notch DAC's?

Axle, the Alpha Reference notes further improved isolation.