E18 is not the solution you'd want for your type of music, the sound are more closely-packed and doesn't possess a wide soundstage. You are better off getting a dap such as the DX90 and maybe a portable amp to go with it to drive the higher impedance headphones.
That said, E18 is still a pretty decent portable dac especially for its price.
I drove the HD650's through an e18 without issue for many months. The power of this amp is more than enough for any headphones I have owned. I also think its tuning is ideal for edm music as it is clear and well defined across the frequencies with good bass impact. I still think its a great little amp and have no desire to upgrade over a year later!