You can convert the
headphones the 5 pin version is to support stereo head phones. This is fine for someone Other Than the
FOH mixer to use. What you hear over
headphones is before the speakers before the
crossover and depending on what
dsp you are using before the
dsp, SO What you are hearing is definitely NOT what the audience is hearing. For reference cues or general hearing of the program it is fine but for mixing and hearing what the audience hears it is NOT a good idea.
Headphones in addition to the above have a totally different
phase response since the audio on each
channel is isolated to each ear so you don't get the
effect of
phase on your hearing. This is also related to the practice where someone puts in a sound
mixer in the booth with the lighting
console and closes it off from the audience space, and then uses
monitor speakers to mix the sound , again a very poor choice since as above you are not hearing what the audience is hearing
Sharyn