Just EQ from the source rather than amp it with a dark amp like the E11. They're fairly easy to power and would respond better to without the amp, IMO.
Synergy is very important for the TMA-1 and if it's not there don't bother with an amp.
Okay, would EQ:ing on a source with an E11 do the trick as well? As for comfortable.. I'm kind of afraid they might not be so comfortable. It's kind of like with my D2000 - the clamping force tends to be on the loose side which subconsciously causes me to keep my head straight (although not needed) because of fear of them falling off my head. Not especially comfortable, particularly for my neck muscles. In that case I'd rather deal with the clamping force of the HD25; that way I know they'll stay on my head at least.
But I think I need to try them some day anyway.. To see if they're really that good.