I don't know if the E17 is still on sale at BnH photo but I saw it for $100 earlier today. I just checked they are sold out.
Well if you plan on using it for an amp for your portable device and the fact that it has a dac end to it. Is a nice portable set up. I say get both. What is another $17. Different chip that is in the Ele dac. Or you can get a E11 which has around 30% more power over the amp portion of the E17 and and get the Ele dac as you can hook the E11 to it and you will have an amp for the go and a amp for your Ele dac which will sound tremendous I bet. Haven't tested this yet.
I will test the results using the E11 tomorrow.
Ah that sounds interesting... also good for my wallet as well. Looking forward to reading the results