As i said B4 the epth is taken out of the track - but in terms of the FX and the depth of field perception (this is what I was told). What is taken out is high frequency information, so in terms of feeling the bass, nothing would change.
As I said I have not done the phase reverse test, so I am going by anothers words...
Another thing to think about is the quality of the program which encodes the mp3. The original founders program has been ripped by others, and the code altered to the detriment of the file conversion. This can result in a 192 file being of the same quality as a 128 file, coz it is shoddy work.
Again my lecturer's words...