Brian,
I hope you are doing well. I think that you might have heard my stereo H2o when we were finally getting the Scintillas going at Karl's. If so, the amp has changed quite a bit since you heard it. The signature s-250 has an additional transformer and has turned the stereo version into a new beast. Also, the Scintillas really require 2 pairs of the Stereo signatures to sound their best. This is according to Henry Ho of H2O and my ears. The pair of Stereo signatures are very good on the Scintillas. When Karl finally gets my second pair of Scintillas to my Chicago house maybe you'll come over for a listen. Lastly, Muralman is not a shill but a very enthusiastic owner. Some of us feel protective of this brand because Henry Ho's only advertisement is through word of mouth and the few reviews that are out there. As we all know, everyone's tastes are different. I guess it helps make the world a more interesting place! All the best..Bob