The difference is really simple.
Mic cables are intended to serve a specific function as
a mic cable. They first have to be flexible and dependable,
and then they have to be shielded.
Since "studio" gear works with a nominal 600ohm impedance,
the capacitance of the cable is *less* important than it
might be in an audiophile application. So, this parameter
is in general not of prime consideration in the manufacture
of a mic cable.
It is more important in audiophile cables, since there is no
guarantee that there will be a low Z driver or load in the
system the cable is used with.
Also, the physical construction is often different for audiophile cables, as extreme ruggedness and flexibility is
not a prime concern.
The balanced cables I make are reasonably flexible, and have
pure silver conductors and a unique geometry, but I wouldn't
suggest using them on stage in a night club - I would suggest using
them in a studio situation for a high end recording however!
Having said that, some studios are now using some audiophile
gear and balanced cables.
_-_-bear (bearlabs.com)
