I had a chance to meet with Sammy for a few hours and try all his different toys. Can't talk about the specifics but I did glean some interesting facts. Sammy likes to listen at a very low volume (good of him to have that discipline lol) and so generally likes a very sparkling treble to bring more details to the fore. That doesn't mean he can't do other variants, he just thinks it's not quite the Rhapsodio house sound- evince the Solar, but even more so another unnamed iem he let me try. Both were very good, but very different (especially in the treble) from the other iems he were very excited about. He referred to them both as a more popular sound- so he knows what sells
Being able to tune varied signatures well is a huge plus in my book!