Quote:
Originally Posted by
M50k
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It elegant in it's simplicity, but it's biggest drawback is that 2-wire capsules like that have their FETs' sources grounded, so it's impossible to optimally bias the FET; that requires access to the internal FET's source pin; that's why '3-wire' capsules are made.
The better built-in FET electrets (like those used in the Line Audio mics) are available in both 2, and 3-wire, or only 3-wire.
Does the 2 vs 3 wire capsule difference have a tangible effect on factors like signal to noise, self-noise, susceptibility to hum etc ? Are the 3 wire FETs any more inherently and optimally biased than the 2 wire version ?