As to the different digital samples, I heard the same thing in every "test" and was able
to pick the low res one each time, meaning I heard a 1 note/larger bass on the first one
but didn't know for sure which format it was, once I was informed which was which on the
first one then everyone after that matched up an the 1 note/larger bass was the lesser file.
Not sure how that translates to the bass I was hearing, an after realizing what I was hearing
I started to also feel that bass was distorted on the lesser files compered to the better ones.