Here is a weired twist ... For Less money if you look hard you may be able to find a H.H. Scott 299 D intergrated tube amp which has a great headphone section that "It just sounds right." & the impedence to drive the Senheisers. Melos sha gold & Mesa Tigris cant drive em . or go for the ear max . xcan2 is also a good piece for the money I also owned a xcan .