What are your thoughts on this portable DAC/AMP combo? Z Reviews says its the best portable DAC on the market right now. I'm planning on using it primarily for my MacbookPro at the Office. I also plan to use it paired with my iPhone SE from time to time as well. I like that the device is versatile hence why I am getting it. Anyone have experience with it? What are some other DAC/AMP combos out there that you guys would recommend? It doesn't have to be paired with an iPhone. I can have a stationary DAC/AMP combo as well that would sit on my office desk. Thanks in advance.