I have a stock unit with the CS chip and the upgraded amplifier. Who in the US can upgrade my DAC for a fee? I love the way it sounds but I got the urge to squeeze more performance out of it especially hearing the good news about the zapfilter mk2. I'd appreciate if you could recommend a reputable person.
P.S. If the choice of forum is inappropriate, mods, please move this thread.
P.S. If the choice of forum is inappropriate, mods, please move this thread.





