I am planning to save up money for a Sony PH-A1 digital to analog converting amplifier which is a little over 300 bucks. I was looking towards cheaper ones such as Fiio E17, however they don't support iPhone so you need all these gadgets such as a Lightning to 30 Pin connection and a certain USB hub, and etc. I found very few cheap budget DAC Amps don't support iPhones and especially harder for newer ones that use lightning cable.