В процессе New balance - Replacing some of the songs in Returning NB

[PodajPiwo]

Hello, i'd like to ask if there's a possibility of replacing some of the songs in Returning with the original ones? What i mean by that is that i've noticed that some main themes sound as if they didn't have as much depth as in original G2, for example theme in Valley of Mines lacks a lot of bass and that ambient howl or whatever it is that made exploring and the whole valley really scary and intriguing and i'd like to fix this with replacing the songs with ones that sound properly. Is it possible to do or not at all?
Thanks in advance