I received my DX1000 3 weeks ago now, I've had about 20 hours on them. I've paired them with 4 amps, yes four turned up to maximum on high gain. But I still feel it needs more amping. I can feel the bass so much though that the air pressure is making the headphones vibrate like mad. I listen to music at extremely loud level.
I thought these headphones would be easy to drive but they actually need a few powerful amps to drive them.
you don´t need a lot of power