As to G-Palmers question which was a great idea
I am definately not a bass head, but I like bass. You can't be without it if you no what I mean, I just don't want it to eclipse treble.
I hate treble harshness on any level, whether it be highs, anything grating turns me way off. The proximity of headphones makes the problem worse. Speakers I don't have the problem
I want a warm forgiving amp that does not sacriface by being laid back and losing detail. I quite like the in-your-head sound and don't want to feel detatched from the music. Intimate I suppose is the key word. I am not a fan of crossfeed but have only heard the crossfeed on headroom amps, only the Little Headroom amp to be honest.
So anyway, I want that combination of warm yet accurate and slightly forward. Not agressive, but forward.
Again I don't know if there is an amp that does this as I am basically describing what real sound is like. I guess my knowledge of headphone words is not up to stock.
In summary I want a natural amp that sounds like music sounds but is in no way analytical. And it has to work for most headphones, it can have a certain special synergy with a certain headphone, but I don't want my Sr-60's to sound terrible while my HD650's are brilliant.
I like all types of music really, nothing hardcore rock hardcore classical, even.
See what you can proscribe, do't be afraid to just guess, I won't hold you responsible, well not completely responsible