Just wanted to follow up on my original post, where I asked what amp to get to take these headphones to the next level. I ended snagging a Bryston BHA1 from another head-fier. I've been listening to it for the last couple days and I cannot wipe the smile off of my face. All the things I love about these headphones are just, well, amplified. (lol, I couldn't resist.) The detailed highs are more detailed; the full and engaging mids and bass are more full and engaging; the space and openness is greater than it has ever been; the textures are that much more palpable.
I was using a M-stage with the bias opamp modification, and for the price that unit sounds great. But this is a whole different level. I don't have a breadth of experience with other amps in this range, so I can't do any direct comparisons. But I can tell you that the Bryston sounds incredible with these headphones.
Now back to listening and grinning stupidly...
That's great to hear as I have a BHA-1 on order. Once it arrives and I get some time with it, I'll post a review comparing the BHA-1 to my current amp, a Woo Audio 6SE with the PS-1000s