Stumbled across it when looking for a mixing can.
Comparing them to the likes of
Edited by Carl1984 - 1/21/13 at 12:58am
Back in the US I did a loan program with the GMP 435s, I think they're a great hps, and can be easily use for mixing. No amp needed @ 35 Ohms, as well the 435 are well balanced sounding hps. Here you go for more info: http://www.head-fi.org/t/438831/german-maestro-u-s-loan-program
Zombie X at ZX Amateur Cables got them and ended the this program, maybe he can share more light on this topic.
^^ Thanks man! The focusrite should do the trick for now, for the Mac platform the Apogee Duet, and the Mini DAC are a great options as well. I'm still using the Mini DAC on my PC, I just love the Apogee sound, both Apogee's have a good hps output, but still not as good as the SPL hps amps. Since the focusrite have some hps drive ability you can check out the HD-600 and the K702, and see what you'll like best.
They stack well, especial if you drive them directly from your computer hps output. But since you already have the focusrite interface you can try a used K-702.