Everest_audio
I can only speak about Benchmark. Its jitter bandwidth is 3Hz and at frequencies of interest (kHz) has way over 100dB of suppression. Benchmark tested it with 1000' of digital cable and couldn't hear any difference. People that have Benchmark cannot even hear difference between coax and cheap plastic Toslink. Most of people (Benchmark forum) said that transport did not make any audible difference. I value experiment - If you find that it makes difference then get good transport. I'm just saying that some upsampling/jitter rejecting DACs might sound exactly the same wit different transports and one might feel stupid with no sonic improvements from expensive transport vs cheap DVD player. Don't buy transport first as some advise - cheap DVD player might do it (and they have great tracking).
Al - the best digital cable supposed to be 1.5m to avoid reflections from impedance boundaries coming back straight at the edge. There are Bergeron diagrams showing what happens to edge with different propagation times and slew rates.
I can only speak about Benchmark. Its jitter bandwidth is 3Hz and at frequencies of interest (kHz) has way over 100dB of suppression. Benchmark tested it with 1000' of digital cable and couldn't hear any difference. People that have Benchmark cannot even hear difference between coax and cheap plastic Toslink. Most of people (Benchmark forum) said that transport did not make any audible difference. I value experiment - If you find that it makes difference then get good transport. I'm just saying that some upsampling/jitter rejecting DACs might sound exactly the same wit different transports and one might feel stupid with no sonic improvements from expensive transport vs cheap DVD player. Don't buy transport first as some advise - cheap DVD player might do it (and they have great tracking).
Al - the best digital cable supposed to be 1.5m to avoid reflections from impedance boundaries coming back straight at the edge. There are Bergeron diagrams showing what happens to edge with different propagation times and slew rates.