Luis,
Technically spoken there is NO difference in audio-quality .... balanced or unbalanced !
The sound is the same : Tone, brightness, noise, 'power' or whatever...
As long as the quality is equal, for me it is absolutely irrelevant how the signals are 'transported' !
Earlier in this thread I tried to explain why- and when balanced transport is used.
It only makes sense in very low 'energy' circuits IMHO.
Thinking only machines with balanced I/O are 'professional' is SOO wrong !!
Btw Luis : What is your definition of 'professional' ? (what are your minimum requirements ?)
Roel
[This message has been edited by Roel (edited 02-13-2003).]