I wasn't sure where to post this so here goes. I'm interested in the AKG K701 heaphones, and had a few questions. Will a Harman Kardon CDR-26 power them ok? I won't be able to afford a headphone pre-amp for a while. If you were going to spend $400.00 on phones which would you suggest? Would I be better off buying say a pair of Sennheiser - HD580 headphones, and a Antique Sound - HB1 Hybrid Tube Headphone Amp to go with it. I can do either one of those options.