the onboard amp is plenty powerful for dynamic headphones. I need a powerful amp for orthodynamic phones.

Have a 02 Dragon on order, the specs looks great honestly. That PCM5102 looks to essentially be a more integrated PCM1792 with a on-silicon hardware mute and I/V amp circuits. Looks like Musiland have developed their own Xilinx Spartan programming to enable it to operate as a USB...