I was at the Chicago meet and got to listen to the SR-71 for a while, and 'twas nothing but eargasmic. Some might think the $350 pricetag is steep, but once you hear it, you may suddenly become a kleptomaniac to get your hands on one. IMO, it was competetive with Ray Samuel's Emmeline HR-2! Sure, the HR-2 had a slightly more refined presentation, but the SR-71 was amazing. In fact, after I plugged my HP-2's into the SR-71, I thought that I had accidently plugged into the XP-7, but no!!
And so you all know, the photo of the SR-71 that ipodstudio has been showing is not representative of the appearance of the actual production model-- Ray told me in Chicago that the production models would be black, with an anodized finish, just like all his other amps.
At the Chicago meet, Ray wanted to put his SR-71 against any other amp in the place, and while it seemed kinda rash and silly at the time, it really was very, very good sounding.