well said, mapman!
i just wanted to put this theme in the air cause imo this is the most logical needed product in the future but until now, nobody does it for various reasons:
the fine and small companies dont have the power to make a great GUI like the SB duet.
the big companies like linn dont add preamps to their streamers cause they want to sell separate preamps and gain more money.
why they still use ac powersupplys - i dont know, maybe they dont want to throw years of research and development into the waste bin (eg. Naim,Linn,ARC)
an easy to replace battery couldnt be a problem in customer acceptance - we do already have hybrid cars on the streets...
i also wanted to see if their is a single source trend.
i do believe - the more people read this - the faster this product will be in the air... for a nonhyped, nonesoteric, studioquality price.
Happy new year !