I've had my K702's for a while now and been doing some reading. People are saying that they need a good amp to sound their best. I've been running mine off my Cambridge Audio 740A Integrated. I've heard that this integrated has a separate headphone amp stage but I'm not 100% sure. Now when people say the K702's need a good amp do they mean a dedicated headphone amp as apposed to a integrated?
If so, what is a good headphone amp to drive these for around $400-$500? I'm also running a 540C CD player and a DacMagic.
Thanks
Blake.

) or Talisman T-33H.