66.220.116.118
In Reply to: RE: Surprisingly posted by audiohound on November 05, 2009 at 16:59:12
"What is PLL?"
Phase-locked-loop - its an oscillator with an adaptive feedback loop
"If a transport has jitter issues, does it tend to be the same amount on SPDIF vs. Toslink."
Yes, but the Toslink will be a bit worse due to the additional conversions. If you system has a bad ground-loop, the Toslink will eliminate this, making the Toslink appear better.
"I'm of the belief that SPDIF is usually better, so this is what I was using when I happened to notice better sound from the less expensive transport. Is it possible that there would be better performance around jitter if I try Toslink on my more expensive Toshiba...or do both signals tend to perform the same?"
It may be a combination ground-loop and jitter difference.
"Lastly, as another person had posted...do you think it's possible that other systems matching issues (not having to do with jitter) could cause one transport to sound better than another with a particular DAC?"
It is unlikely but possible. If you system has other sibilance problems, then the lower jitter source may actually sound more harsh by unmasking this other sibilance in your system. It happens.
Steve N.
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