Heard a difference? How come you both qualified your comments down to saying you "heard a difference"? This forum has no shortage of strong opinions, good feedback and descriptive poetic wordsmithing, maybe all three at once. It seems, though, when it comes to the Nespa, that there's some kind of NDA going on. I mean, I can take my cds, five them to my wife to play in her van, get them back months later all scratched and worn, and then play them in my hi-end rig. I can honestly say I "heard a difference" but I ain't paying her $850 to do that.....oh, and the difference? It's not a good difference, it's a bad one.
Seriously, many reading this thread have likely read all the Nespa info and reviews from 6moons, the Asylum, Hoffman, A-gon, etc. However, it has a different authority when our own Circle brethren comment on a piece of gear. C'mon, tell us what you really think.
BTW, the Nespa pro is the latest version, more expensive ($825) and much more powerful (3x supposedly) xenon bulb. it has the three settings, as well.