I'm looking towards purchasing a desktop amplifier that will work with: HiFiman HE-400's and the Sennheiser HD 598's. I would prefer if it stayed under $200, but I don't know what kind of amp will power them both. Other headphones that I might possibly use would be the Philips Citiscape Uptown (Which is highly unlikely as they do not require an amp), and the HiFIman RE-262's. They need to be USB amps as I use my computer for music listening.
Edited by JD1993 - 10/7/12 at 11:58pm