There’s lots of conflicting info out there on topics like LFE only or LFE + Main, so open to further advice on setup.
For context I have the AV-7705. There’s a pretty good Audyssey thread on AVS Forum that I had followed some years ago. LFE was the consensus. Otherwise your subs and mains could cancel each other out in the lower frequency range with LFE+Main. Additionally, having the processor crossing over the mains at say 80Hz typically provides greater headroom from your separate amp while reducing distortion during demanding home theater moments.
The “double bass” via LFE+Mains looks great in the menu setting, but it’s actually counterproductive when attempting to avoid nulls while maximizing impact of the subs and integration with the Mains.
Question: Pure Direct On for just listening to music or is it always on? I understand Pure Direct looks great on paper, but in practice it was never a preference (for me), especially for HT usage. And I could be wrong, but Pure Direct bypasses Audyssey room mitigation (correction).

