Hi folks,
Been havin' a bit of bother correctly balancing my sub into my new HT set-up (please see kit below). Anyway's, my sub has a "Movie/Music" switch (switch it to one or the other - as the manual suggests - dependant upon source material

), am I right in assuming this is similar to the "Slam/Depth" switch that features on REL etc subs (used to have one quite a while ago).
I recently read that
"...the 'Slam' position will increase the SPL output between 40Hz-150Hz but at the expense of bass extension, whereas the 'Depth' mode affords maximum low frequency output and a near flat response..." and that further investigation suggests that
most audiophiles choose to avoid the 'Slam' mode for the very reason(s) detailed above.
So, can anyone shed any further light on this 'Movie/Music' mode

, and if possible, suggest which one I ought to avoid using? My sincere thanks in advance.
Best wishes,
DC