In my opinion bad headphones will have a bigger impact on the sound than the difference between a 192 and 320 mp3. Sure, on a 192 a practiced listener might be

In my opinion bad headphones will have a bigger impact on the sound than the difference between a 192 and 320 mp3. Sure, on a 192 a practiced listener might be able to discern compression in things like cymbal washes, but bad headphones can wreck the whole balance of a track by boosting bass to ridiculous levels etc.