As I am only playing songs through iPod using Intravee, the deep sound depends on several thing ... the EQ settings, the ripping quality, ... etc..
As a matter of fact, all MP3s ripped over 256k sounds perfect.. I never change the bass control setting on the headunit.. my iPod EQ is set on "Rock" all the time. I listen to all kinds of music, Oldies, Jazz, Salsa, Latin, Hard Rock, and of course a lot of Arabic music.
You can never reach a common setting. It is a matter of personal preference at the end
