I was mightily impressed by the sound of the bus-powered, $399 DACport USB-input headphone amplifier when I reviewed it in June
. So when I was looking round the CanJam exhibit
, I checked out the Centrance booth. There sat Michael Goodman, the Chicago company's managing director, with a new product with a very familiar form factor. The $795 DacMini headphone amplifier/preamplifier is the size and shape of the Mac mini computer, and offers two line-level inputs as well as USB, Toslink, and S/PDIF electrical digital inputs. Versions are planned with a power amplifier section and an iPod dock.