[Conker]

Impedence = resistance. Both options would work.

Either A:
- Using a low impedence mic (like the Element)

or B:
- Using a PTT with integrated amplifier.

Which Peltor PTTs don't have, as they are designed for military radios which have one integrated. Thing is, the United Star is designed to work with both Kenwood-type headsets (which don't need one) and military headsets, which do... It would need 2 separate circuits.