If you can't drive it easily from a smartphone, that's an epic fail in my world.

@Toom - You can drive it from a smartphone, but to get the best out of it, like many other high-end earphones/headphones you will be rewarded by providing a solid source.

I was going to say the same as @Toom but since u replied i understand but still im always hoping for something that i wont notice a very significant difference (not as high as the one u found at least).
Good thing these can only come from abroad so im not tempted.