Thanks! I'd read good things about it but I wanted to ask around.

Greetings. I'm new, and while I've read a lot of posts here and yes, I did use the search, I can't seem to find the answer to my question(s), as I'm looking for something somewhat specific.   Here's what I have: iPhone 7 + Apple dongle, Audio Technica ATH-M40x.   The sound through the dongle...