Yes, that's why I looked for a local seller also. There is valuable information in this thread. I would say make a selection from opamps to try out - buy a few at once better then pay shipping again if an opamp does not work out.
Opamp swapping makes a difference. I am actually rediscovering albums I wanted to but could not because the headphone/dac/amp synergy was not there. And that with swapping just one tiny component
Edited by Kurios - 11/27/12 at 1:26pm