I bought some Sparkos op amps a while back, and have been on the email list since. Recently, Andrew offered up an Aries amp for a loaner program, which I was fortunate enough to get in on. I've been listening to it this week with my Verite Closed, and it is a very fine amp. Lots of slam, lots of air and definition, extended and smooth highs, and very quick overall. I actually got a call from Andrew this evening to see how things were going. Seems like a real nice guy. You might consider contacting him about a loaner unit. I think folks would enjoy listening to one.