....................................................................................Nigel Goodwin said:Why?, and what are you defining as 'low level'.
And it's not 'my' technique, it's EVERYONE'S technique - can you name a single audio input where impedance matching is used?. If you're thinking of suggesting microphone transformers?, they are simply used to change the impedance, which is then fed into a much higher impedance as normal.
Nigel Goodwin
Apparently you have not been involved with low level, noisy signals very much.
I am correct and EVERYONE's technique is wrong.
I have emphasized the words "impedance matching"
with ...vvv... marks.
see:
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.................vvvvvvvvvvvvvvvvvv.................
< Excellent impedance matching between the microphone and the pre-amplifier,
< excellent balance and common mode rejection ratios (CMRR), very low distortion,
< and superior bandwidth
see:
**broken link removed**
hawk2eye