Xtant 4180c bias settings

Hello,
I need your help for xtant 4180c amplifier bias setting.
I found two trimmer, and i don't know which one is the correct trimmer of bias setting.
Thanks in advance 🙂
 

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I don't have anything on that amp but on other Xtant amps, one is DC offset and the other is bias (likely near the output transistors). If the amp is functioning normally, turning each one and watching the idle current and DC offset across the speaker terminals will tell you which is which.
 
I don't have anything on that amp but on other Xtant amps, one is DC offset and the other is bias (likely near the output transistors). If the amp is functioning normally, turning each one and watching the idle current and DC offset across the speaker terminals will tell you which is which.
Hi Perry, thank you, i have found.
There are sets to the minimum regulation, can be ok for you? I have 5.2A current idle operation, don't is strange?