Most microphone preamp gear these days has a mic input impedance of about 1.5KOhms to, say, 3KOhms. My DM3200's pres have an input impedance of 2.2KOhms. And, most of my capacitor mics have an output impedance in the 150 to 200 Ohm range. This 10 to 1 impedance ratio seems to work well as a standard across the industry. Most everything I have read says that a mic preamp's input impedance should be about 10 times more than a microphone's output impedance. But, recently I have purchased a certain brand of mic pre (not Tascam), and it's microphone input impedance is listed at 600 Ohms max, with the option of going down to 150 Ohms. With such less resistance, will these low impedance levels possibly distort or impair my newly modded capacitor microphones?