I also had a Benchmark HDR for a couple weeks. As a DAC, I was impressed by the purity of its midrange, but it was leaner sounding that I like, and the top, while very extended, was sort of squeaky sounding. The Benchmark is so widely respected and has such great features; I wanted to like it, but it just didn't work out. Maybe the leanness and squeakiness are what come with neutrality and accuracy. In that case it needs bass and treble controls in addition to a volume knob.
I bought a Neko DAC after that and kept it. After rearranging the tubes in my BAT 3iX, I was more happy with it as a pre-amp.
I bought a Neko DAC after that and kept it. After rearranging the tubes in my BAT 3iX, I was more happy with it as a pre-amp.