Zen I/V Converter
Thirteen years ago, Pass Labs launched the D1, a dedicated Digital to Analog converter for high end audio. It was based on balanced PCM63 DAC chips with a current source output, which requires a separate current-to-voltage converter (known as an I/V) to turn its output into the voltage to drive...
Last edited by Variac; 1st April 2011 at 11:40 PM.
|
I have replaced plenty of NE5534+2xJRC2068 to OPA627 +2xOPA2134 for DF1706+PCM1704 in Pioneer 49/59TXi DAC board with ALL positive subjective opinions, in addition I had confirmed the difference in hearing in DBT (with >95% probability) using SACD DSotM source through i-link (song #7) with Lynx L22 soundcard and Sony MDR-V6 headphones, the difference in after-hit ringing of cymbals is noticeable for me without any doubts.
I even have some theoretical suggestion (THD hearing perception threshold) confirming the difference in sounding with measured levels of distortions per each harmonic up to 17th ... of course, it needs to be confirmed by multiple experiments and better equipment, but I had no time to continue it.