For music listening, the sub is running 2 dB above the reference 75 dB of the main speakers, and for movies, I decided to have fun and set it 8 dB above the mains.
The system is set as follows in our room ... Legacy Signatures are speaker A, M100's are speaker B, and the sub is S ...
A.B ......... A.B.S
As with the speakers, for the purpose of this test, the EP-800 is away from boundaries.