Just recently found out about the new Firestone Audio FireKey Series; they're a series of portable USB products:
BlackKey USB DAC -- looks like a portable USB DAC similar to a Hifiman HM-101, from USB straight to a 3.5mm analog ouput
RedKey USB Translator --- a DDC-type component; translates USB to Coaxial
GreenKey USB Isolator --- not sure what this thing does... looks like another USB output on the other end??? Probably an USB noise filter...
Edited by tomscy2000 - 12/31/11 at 12:14am