Shannon's DMSI 3.01-A Journal V2

[Trend]

I have this one: MDR-XB30EX, frequency up to 24KHz according to the world of google; although it has the "EXTRA BASS" written in caps on the box, probably I can adjust my cell phone's settings, put it to Jazz or lowering bass; it's the over 20kHz ability to handle that matters, yes?

Also, is it recommended NOT watching a movie or reading the news while listening to the sub as it may affect your subconscious?