Need Advice: Which Headphone Amp?

Headroom - SS sound; crossfeed option
ASL - good value tube sound
David Berning - headphone heaven

All three of these work well with Sennheisers - it depends on your taste and budget. I have all three but the microZOTL is by far my favorite, then the ASL, and finally the Headroom Supreme with Base Station (which I use with closed Audio Technica headphones in a project studio for monitoring).

I've been doing a little research too, and the Cordas HA-1 amp by Meier audio seems to be highly recommended on the headphone pages: headwize.com and headfi.com. It comes with variable crossfeed and is solid state. Good luck.

There is no single answer. Go to head-fi.com and become immersed in the puzzle from which you may never return. (Also consider accessory cables by Cardas or Equinox).