Pro Audio Support

What is the usual operational setting for the mic gain on the Symetrix 528E?
The answer depends on the model of 528E you have:

Early 528E (plastic-shaft pots): 2 o'clock
1995 528E (all-metal pots): 5 o'clock
Current rev 528E (all-metal pots): 2 o'clock

Of course, these settings will vary depending on voice talent and the microphone used.