What is 'high jitter?'
Paulg1 (Threads | Answers)
this is a loaded question & has many subjective answers. It also gets many people into a fight as there are many different beliefs on the matter! Be warned! :-)
There is much written on this subject - you only have to search the archives here & you will be inundated.
My recommendation is to do that search & start reading some of the written material on jitter. I have also written a little on the Wadia i170 & it's apparently high(er) jitter output.
Briefly, the Wadia i170 is outputting digital at full 16/44.1 rate (meaning a 1.4112MHz rate) to the external DAC. I have assumed a .WAV format file. I personally would have assumed that jitter in the 1% (of the clock freq) or less range would have been sufficient. However, that does not seem to be the case - empirical data seems to indicate that jitter in the 0.1% (of the clock freq) or less is a "requirement".
Under these "standards", the Wadia i170 jitter is considered too high.
FWIW. YMMV. IMHO.