Optimal digital cable length -- science or voodoo?


I'm doing research toward purchase of a new 75-ohm digital cable to feed a DAC, and I am coming across claims that the "optimal" length for a digital cable is 1.5 meters. Some even claim that, given the exact same brand and model of cable, there's a significant audible difference between a 1-meter and 1.5 meter length. Can an extra half-meter make any improvement? Is there science behind this claim, or is it just voodoo?
jhold

Showing 1 response by markphd

This was one of those observations that was unexpected. As a result, people weren't really looking for it. Sort of like the observation that a copied CD sounds better than the original.

I remember at one time reading an interview with a cable designer. He provided a reasonable scientific explanation for why a slightly longer optical cable was better than a shorter one. Sorry but I don't recall the details. Now whether this was really what was happening or whether it was just a clever argument is not something I can judge. However, there has to be some reason as to why many people report hearing differences.