Mic preamp comparison
Tobiah = audiophool wrote:
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This leads me to wonder why it's not more popular to put the
whole preamp in the microphone.
** Keep wondering.....
At one time the answer was
that the preamp was expensive and many mics could use the same
preamp.
** Never the reason.
Now I wonder (and am asking) whether it would be more
advantageous to engineer the mics to output line level signals
all by themselves.
** Only possible if ALL mics were phantom powered, a massive disadvantage and big issue in live music.
Having the mic pre separate ALLOWS the gain to be set by an operator to CREATE a "line level " signal.
The raw signal coming from a mic varies over a huge range so mic pres have *gain controls* with 60 to 70 dB of adjustment to cater for this. No way exists to do this automatically, in the mic.
...... Phil
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