Acquired a Holographic Audio Ear One. Really good amplifier for the DX 1000. Transparent and absolutely NO added warmth I am impressed how much detail it can extract from them. Particularly regarding the bass. These headphones may be more powerhungry then I thought. Goldpoint Headphone Pro has worked well for me also in the neutral and transparent camp and optimized for low impedance headhpones but it just don´t give the definition and nuances of the bass notes more one note. Neither do the C-2.1 which has quite a beefy trafo. Power ratings on the Ear one may be real. 3W at 32 ohm promised.
But don´t get me wrong it´s still a bassy and very warm headphone. Gonna harrass my neighbours with my LCD-2 tomorrow and see how it fairs. Using Era as benchmark.