[cyclist]

I am looking at buying one of these products and would like to be better educated about the differences.  I plan on using it with a usb connection to my computer (windows at work mac at home) to drive my grado sr60 headphones.  I dont currently need either a portable analog only amp or line outputs but conceivable could have a use for either in the future.  How do these two compare for sound quality with a usb input.  Right now im leaning towards the uDac but am open.
thanks

[nuforce-casey]

The DAC in uDAC will offer better performance in your application, if portability and rechargeabe are not your concerns.

Icon Mobile can support external 3.5mm input, such as amping a iPod, please note that uDAC has no analog input, it's a pure DAC.