Old phones as streaming sources

@mdalton Thanks. Was not aware of hifi news. The really do have a who’s who of high end streamer tests!

So lets assume that frequency and noise floor are pretty much settled issues with differences that are pretty much below the human level of detection in any competently designed streamer (at least that’s my opinion), and focus on jitter which seems very likely to be able to impair things like coherency, image and sound-stage. so here is the chart for the Grimm mu1, a very nice $10,000 streamer, Grimm Mu1

and here is the similar chart for the four "working class" streaming sources in the Archimago blog article, Working Class streamers

Taken at face value the "working class" group seems to surpass the aristocrat.(for  the benefit of anyone reading this I looked at the measurements of several aristocrats on the HIFI site and their measurements were strikingly similar) Now I know enough about testing and charts to know there are variables that may not have been equal in the setup and testing from these two different sources so I would not say that this is a rock solid conclusion, but at the least it does argue that there is not much difference insofar as this measurement relates to perceived sound quality.

Jitter in audio or video streams is indeed measured in milliseconds (ms), representing the variation in the time it takes for data to travel from the source to the destination. The acceptable level of jitter before causing distortion can vary depending on the specific application and standards, with some says 30 ms.  

How would the aforementioned Jittle test measured in dB be translated to time delay? thx.

I tried an old phone and didn't like it.  I don't care how it measures, it didn't sound good.

@tubeguy76 

wrll there you have it!  guess we’re done! 

@mdalton 
Don't get so defensive, it's going to be ok.