Some very very short impressions on QuickStep vs PCStep:
These two amps share the same sound signature of Corda amps. I would use the words "clean, balanced, neutral" to describe it. (Excuse me. English is not my first language. These are the words I could think of to express what I think.)
Yet sound-wise QuickStep is definitely better than PCStep (No surprise, isn't it?). The sound of QuickStep is more refined and with greater dynamics. Now I can hear the details and the subtle parts in a piece of music. And when the music explodes, QuickStep can make you feel the energy of the music too. That said, PCStep is still very impressive, given its size and price!
I am still running-in these amps. Hope they will sing better and better!
I am now thinking to buy a new iem and a headphone for my QuickStep. I believe the QuickStep headfi combo should give me wonderful moments of music wherever I go. I would then leave my PCStep for use in my office, connecting it with my desktop ...... You know, it is always wise not to be too high profile in your working place! ;-)
Edited by chowyeung - 8/6/12 at 8:32pm