Converting Mic/Input Impedance and Gain Reduction
So if i put a 293 ohm resistor in series with Xlr pin 2 and another in series with
Xlr pin 3 and a 30 ohm across both theoretically if I plug a 600 mic in one side
I get a 19 db reduction in gain and a nominal load for a 30 ohm transformer of a
vintage pre correct?. And do I dare then apply 48v phantom power to the
thing hoping that Mr Sowters 47 year old transformer is going to keep nice and insulated Xlr pin 1 thru 3 or should I stick to vintage ribbons and no phantom power in this old 3 EF86 mic amp by Vortexion. Also what happens if the 293 ohm resistors
are in fact 300 ohm (its all I can get). What do you think Chaps?