Ambrose said:
I go by what I hear, if I like / perceive improvement then 8)
Else I will return nothing lost, except postage.
Sounds like a very scientific approach.... :clap:
I do exactly the same.
Regarding jitter, I gave up once I discovered that there is random jitter, deterministic jitter, period jitter, cycle-to-cycle jitter and half-period jitter, master clock jitter, software jitter, cross-talk, ground bounce... :?
Bearing these complexities in mind, I realized there is no way I could determine whether a manufacturer was
a) untruthfully trying to tell me that jitter was a non-issue in most/any kit, so I might as well buy their (budget?) product or
b) trying to scare me into thinking that it was an issue, just so that I could solve that by buying their expensive (uniquely jitterless) kit
So...it comes back to personal experiment, listening. Seeing for yourself rather than believing manufacturers. It's the best anyone can do unless they are hifi designers with intimate knowledge of the contents of the box. If, after listening, your expensive demo kit sounds no better than your existing cheap kit, great!