Patrick wrote:

how much of a difference in cable length would it take to create a
noticeable phase difference between two signals coming from the same
source simultaneously? i.e., wouldn't a 1000' xlr cable arrive at the
pre, recorder, etc. much later than the signal that only had to travel
through a 25' xlr cable?

A few picoseconds / nanoseconds later, as a guess, without getting the
calculator out.

In days of old, TV studios with multiple cameras used drums of cable to
delay the signal from some cameras, so that all of them were precisely
synched.

If your worried about time delays ( not actually phase shift ) , worry
about the different processing time in digital desks !

E.g. - if you patch in a compressor algorithm, the extra instructions
required will delay the signal by 'X' number of CPU cycles.


Graham