Phil Leigh Wrote: > > > Anyway, I fully appreciate what you are saying. However the fact > remains that the transport's jitter is measurable without any cable/dac > connected. Once we've established the low jitter of the SB we can turn > our attention to not compromising that low jitter through inadequate > cables and poorly performing DACS (including their SPDIF receivers).Well, not > quite. You see the 'transport' (as you are defining it), also includes the SPDIF transmitter - and you can't really measure the effects of the SPDIF trnasmitter in isolation, because they depend on the cable and the receiver. Because the tx/cable/rx is meant to act as a 75Ohm transmission line, any deficiency in one element will affect the signal. If all three are sub-optimal (which they always are), there will then be an interaction between them. Then to add to that, the design of the DAC's PLL can allow it to be affected to a greater or lesser degree by any SPDIF artifacts.
Phil Leigh Wrote: > > The point is that whilst the deleterious impact of jitter only becomes > manifest during the D-A process, the jitter is a lurking presence (or > not) before it gets to the DAC. So, best we try and minimize it before > it gets there...once it's in the DAC it's going to affect the d-a > process in a way that is probably audible...and no amount of fancy > re-clocking, buffering etc will totally eliminate it. > Agreed. -- Patrick Dixon www.at-tunes.co.uk ------------------------------------------------------------------------ Patrick Dixon's Profile: http://forums.slimdevices.com/member.php?userid=90 View this thread: http://forums.slimdevices.com/showthread.php?t=25138 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
