XLD - advice welcome.

pico-farads?

Yep - but that relates to capacitance. Guido has measured the Jitter so i was wondering what the pF mentioned was referring to.

Failed humour, on my part.

I can't find a definition of pF in regards to jitter other than it is a measurement ,I guess of the phenomenon.

Jitter is a measurement of (time) delay and is expressed in psec.

Bob

A pico-second? 10⁻ 12 seconds?

I'm assuming.

Doesn't explain wher pF comes in though. 

With all this talk about picoseconds of Jitter just as a matter of interest does anybody know how much jitter the CD555 typically exhibits. 

I was under the impression it doesn't measure fabulously well but since it sounds so great how does that happen?

Although the amount of jitter should have a direct correlation with how good something ends up sounding, I have found the hard way that implementing expensive jitter reducing devices (such as the Audio Alchemy DTI Pro, $1000 circa 1994) makes far, far less differences than beefing up the analog outputs, or reducing ripple/noise in power supplies. 

Also, what a single jitter value doesn't tell you is the *spectrum* of the jitter, which is at least as important. In some ways trying to predict outcome based on a jitter value is sort of like trying to see which turntable sounds best by looking at W&F values....something I was guilty of doing when I bought the worst sounding (but maybe the best specced) table I have ever used.