You mean it won't sound good on my USB 128MB Muvo MP3 player? HA.

I've got my Pio 45TX and Rotel 1050 (?) stereo pre-amp to test them out. My Ah! Njoeb 4000 tube CD player has a headphone output that I've never tried. Maybe I'll test it w/ my Superfi 5 EB's for comparison, though that's probably not fair.

I don't have a dedicated headphone amp, but I am considering the Hawthorne adapter for my Sophia Baby, considering that I got the cans for cheap.