Listening out of the TTVJ FET-A for the last hour and it is a very pleasing combo. I have been listening straight out of a Squeezebox (crappy streaming Rhapsody) and also from an iMod so not the highest fidelity, but certainly enough to get a sense of the combo. I quite like the way the cans sound from this amp, especially with the iMod. The FET-A gives them some good body but it is a nicely clean, detailed amp so you aren't losing out on some of their strengths. The bass is nice and the highs are extended but not harsh.
The MoFi Cowboy Junkies is playing now and it sounds great so I'm going to let it ride while I do some work. Nice enough combo that I am going to leave this setup in place for awhile.