GougMan wrote:The E10 is not a source - it's just a basic desktop amp. It would not be enough to drive headphones like the 701s - you would need something with more power like maybe the Cube or T33h (Someone correct me if I'm wrong as I'm sure other people would be more knowledgeable about amps/dacs/etc...)
Also, if you don't upgrade the source, you would most likely need a DAC as well to get good sound out of it.
The e10 is a USB powered external DAC/Amp, it is not just a desktop amp.
It's definitely not enough for the K701 or any hard to drive phones for that matter
However it would work great with easier to drive phones such as his AD900, hence why I recommended it, If he sold his ES7 and doesn't want to break the bank
If he's willing to put in more $ there are better options available, but your looking at spending 3x the price of the E10