Every since the Shure 1440 came out I was instantly sucked into buying it. N i have just purchased it. I was looking into some tube amp, n came across Bottlehead Crack amp. It fit my budget perfectly. Currently i have a Dac/amp setup, a Fiio e9 n e7. I was wondering does anyone know how to connect the Crack amp to the e9? I am pretty new at this stuff, any help would do. Do you guys thinks this would be a good combination?