I have had the headset for about 12 months now so I will just drop some of my long term expectations to anyone wanting to buy this. I have the second (current) revision of the headphones with the detachable cable.   Using this on over half a dozen sound cards now, I can confirm these need a good, clean power level for optimal performance. The availability of an EQ, ideally through a PC sound card would be ideal for lifting bass and enabling a virtual 7.1 effect which sounds great in these headphones. The bass response, once lifted through a quality...