I read somewhere on the forum that the A900 is more easily driven than the A500. I may have been dreaming, so don't shoot me!
Anyway, after reading so many positives about these 3 cans, I think it is time to splurge some money on them. I'd really hope they run fine without an amp because I really don't intend to get one, unless there's a really cheap and good one available.
One thing I don't quite understand though: does an amp actually improve sound quality, or does it only increase the sound amplitude, i.e. increase volume?
Anyway, after reading so many positives about these 3 cans, I think it is time to splurge some money on them. I'd really hope they run fine without an amp because I really don't intend to get one, unless there's a really cheap and good one available.
One thing I don't quite understand though: does an amp actually improve sound quality, or does it only increase the sound amplitude, i.e. increase volume?

























On comfort after some weeks to a month I'd say they are a bit better than the HD555's. I kind of miss the 3D wings when I wear the HD555.