Do you have the "mid bass" switched on or off?

[jimbill]

nt

 

[ttocs]

Mine is in the middle default position.

 

[jimbill]

You're right, I should have said which of the three positions do you have yours' set too?

 

[JonFo]

This is extremely room and placement dependent, so even if 90% say 'position X', it might not be the correct setting for your setup.

https://avgadgets.com/dealing-with-boundary-reinforcement-in-your-home-theater/
https://acousticfrontiers.com/blogs/Articles/What-is-Speaker-Boundary-Interference

I'd be more interested in seeing several REW response graphs from multiple users demonstrating the effect of the three positions in their rooms.

 

[rpokuls]

I used to set it at -2 dB most of the time but 0 dB for some rock music.

I upgraded my amp recently and find now that -2 dB all the time is fine.