Hi! I wanted to know if there is a point of buying external DAC like Khadas Tone Board to replace my Behringer UMC204HD. From what I've read on the forums it performs pretty well, but I just wanted to make sure that I won't just pay another $99 for something that won't do anything to the...

I'm looking for IEMs for less than 500$. I mainly listen to pop. I'm going to use them during my daily commute so they have to isolate pretty well. I can also save up money for used Campfire Andromeda. Please recommend me what should I get/do.