I’m looking to get the most out of my iPhone XS Max while using Spotify premium set to 320 kbps. Now I realize this isn’t lossless or even “super high quality” by any means, but it’s what I want to use since it has most of my library. I’ve been looking into a new DAC/amp combo for it. I have the...

I apologize in advance if this is in the wrong subforum, if it happens to be, please move this post.   I am thinking of purchasing a portable setup for my iphone 4.  I've been researching and thinking of what I want to buy, I am posting this to ask for advice from others who may know better...