صفحهٔ ۸ manual:
The impedance for the Mic input can be set to 500 ohms or 2.0K ohms. Switching between these two positions while listening to a connected microphone may reveal a different tonal quality and/or gain difference (be sure to carefully level match when doing comparisons because louder tends to sound better). Typically, a
microphone preamplifier should have input impedance roughly equal to about 10 times the
microphone output impedance. For example, if your microphone has an output impedance of
approximately 200 ohms, the switch should be set to the 2.0K position.
کلا پیشنهاد میکنن که impedance اینپوت تقریبا ۱۰ برابر impedance اوتپوت باشه. این ستینگ خوبی برای شروع هست
However, making music is not necessarily about adhering to technical specifications, so feel free to experiment with the settings to attain the desired sound: you will not harm you microphone or the LA 610.
ولی بد هم گفتن که این معنیش این نیست که این حساب برای هر Mic بهترین ستینگ هست. باز باید امتحان بکنی. ولی اگه حساب میخوای، همین بالا نوشتن. هیچ اتفاقی برای Mic یا خود دستگاه نمیفته.