I 100% agree and found it interesting that your mind went directly to MD as that's exactly what I thought of when I heard the A45's signature. I have a M0 to compare and, while it has this airiness and ability to pull out some crazy detail from my tracks, there's just something about the A45 that says "listen to me...just...listen." It's not the clearest DAP out there, but it's still so much fun for listening. I haven't been tempted to take the M0 out of the house at all since my A45 showed up. Thanks for the suggestions on EQ. I did have to tone down the top band to a +1 since it was just a little too bright on my iSine 10. Have you considered the Nuraphone? It's a little different take on EQ (and a really bizarre design), but it saves EQ profiles that you'd make on your phone directly to the cans so you can use them on multiple devices. I don't have first-hand experience on it, but the tech looks really cool and, assuming it works as intended, might be exactly what you're looking for.