What headphones for drumming?

[Skaliwag]

Im looking at getting a new set of headphones for my father for drumming. He has explained to me in the past that a particular type of headphones were able to adjust left and right ear volume and that helped him distinguish the drums from certain songs. Since good headphones dont seem to have this feature, i thought about using a equalizer or something of that nature. What would i need audio wise to make the drums in a song stand out?

[grawk]

try http://www.gearslutz.com

[Skaliwag]

thanks