Meet the WOO Audio WA7. This little guy is a Amp/DAC combination of tube headphone amplifier which features a built-in USB Digital-to-Analog Converter. It is designed to maintain pure data integrity, which is transmitted through a USB 2.0 interface. It has quiet a long delivery time, orders placed now will be received in March 2013.

Available at Woo Audio for $999.00 USD.