My good buds: I listen to headphones occassionally and might like to do more often but I'm not very please with what I've got at the moment.

My headphones are Sennheiser HD555's which I feel are OK for now. They are full-sized 50 ohm 'phones that are very comfortable to wear, (first cans I've ever been willing to concede are comfortable).

I will listen through my computer. Presently I'm using a Pro-ject Head Box for an amp driven by my M-Audio Revo 7.1 soundcards analog outs. Although a lot better than my computer's headphone output. I'm quite disappointed with this unit which has neither resolution nor dynamics. I'm looking for replacement suggestions.



Since I'm constantly nagged by the likes of RGA about SET and OTL, I wonder if there is such a thing as half-decent tube headphone amps of this type. I'm open to your suggestions. Big caveat: it needs to be <$300.