Csmgolf and Macro: I will be keeping both pieces in my system for the next few weeks. However, to macro's point, I have been switching in and out with the Sunfire pieces and the Nuforce and Capri, both together as a unit and individually, all combinations. Listening to short cuts to hear for differences in timbre, detail, etc, as well as complete songs and sets of songs, then switching and replaying. Really no difference at all, and certainly not the dramatic difference I was hoping to hear from not only much more expensive but also exceptionally well reviewed gear that supposedly played above it's price to boot(guidocorona, where are you?). To be honest, my wife actually heard and preferred a slight difference with the Capri vs the Sunfire pre/pro, using the Nuforce amp. But again, she thought the sound was very close and loved the sound either way. Where's my dramatic upgrade, LOL???