Nice, pleasant and smooth sound, right? It's why I fell in love with them in the first place. It's the type of sound signature I prefer! Anyways, I use a DX50 into a 627 MICRO amp and it's the perfect combination of glorious smoothness.
Hopefully they'll see more coverage as more people get to know them!
These have just the right sound signature to tickle my ears and I consider myself to be notorious for hating crappy treble response so they must be doing something right! They definitely don't have the best bass extension though but it's enough for me.