For sale is an approximately 1-year old Burson HD-160D, black DAC/preamp/headphone amplifier. When I purchased the unit last March, it was sold as a "B" stock piece given the imperfection in the finish on the upper right top faceplate (not visible when looking straight-on), The imperfection is original. The unit also has several hairline scratches on the top, again original to the unit. The front of the unit is as new, however.
There are many reviews of this unit available on the Internet. It incorporates an exceptional DAC combined with a class-leading headphone amplifier, and to top it off - a preamplifier section with full functionality.
The asking price reflects the imperfections noted above. Unless you are looking at the top plate at a specific angle, the hairline scratches pretty much blend into the silver finish.