Can a portable headphone amplifier satisfy demanding audiophiles?

Truly portable high-end audio products are rare, but Furutech's Cruise USB digital-to-analog converter/headphone amplifier will wow demanding audiophiles.<img src="http://feeds.feedburner.com/~r/cnet/tcoc/~4/tuyM9LsJYmk" height="1" width="1"/> [More]