In comparison with APO (Windows) the Db values are totally different. + or - 1Db in EQE is about the same as + or - 3Db in APO. Is this a known issue?

This is the first time I heard of that issue. The Q values are the same and everything too?

^deer:

This is the first time I heard of that issue. The Q values are the same and everything too?

Yes, Q is the same.

This has been resolved via Twitter DM, turns out the preamp wasn't turned down.