It's been three days playing the SCA35 and it makes me smile every time. Mated with a pair of KLH 22's, the highs are crisp, mids silky and bass tight. Not slow or sloppy. A side note on the KLH 22's. They give out very good bass and a nice overall soundstage. I was listening to Miles Davis, Kind of Blue and it sounded beautiful. I felt as if the instruments where live in my living room. Magical. And this was coming out of my laptop. I'm sure the audio card is not great, but this combo made it sound rich.
The SCA35 is definitely a keeper and well worth the EFB mod. HIGHLY RECOMMENDED.