LEVELS

[Skystar]

Hi everyone.
I hope that someone can help me.
Heres the problem:

1. System: Eversolo A6 - USB - Holo Cyan2 - RCA - Musical Fidelity 5si - speakers
When the PCM album gain is for example -3.5 dB.
What gain level should I put on PEQ on Eversolo?
2. System: PC - USB - MiniDSP Flex Eight - RCA - Musical Fidelity 5si - speakers
And for listening PCM - album gain is for example -6.5 dB:
What gain level should I input in HQP ON PC?
What gain level to put on output 1,2 on MiniDSP Device Console?
What gain level to put on front panel on MiniDSP for the corresponding preset?

Thanks in advance!