Having a DEQX allows very fine tuning of my subwoofers and frequencies below 100hz etc
having previously tuned on room resonance response, i noted deep double bass still boomed at times
using a bass guitar tuning app, and plucked bass tracks, i isolated resonant frequencies, and moved frequency damping to centre on those frequencies rather than room frequency peaks, leading much smoother and clearer bass frequencies and overall clarity of midrange and soundstage
these were all high q corrections
obviously this would be not necessarily applicable to movies
having previously tuned on room resonance response, i noted deep double bass still boomed at times
using a bass guitar tuning app, and plucked bass tracks, i isolated resonant frequencies, and moved frequency damping to centre on those frequencies rather than room frequency peaks, leading much smoother and clearer bass frequencies and overall clarity of midrange and soundstage
these were all high q corrections
obviously this would be not necessarily applicable to movies