My MA750i is dying, and with fireworks season approaching I'm in need of a new IEM that sounds good and isolates well. ER2XR seems to be the obvious choice for this, but apparently Magaosi IEM's also isolate well, and I'm interested in multi-BA IEM's because I liked the treble, detail and...

Hi, I'm looking for a good, isolating, non fatiguing iem under 200. After some research I've came down to the Etymotic er2xr, er3xr, and the er4xr. I plan on using these during study sessions in my school library and stationary listening. These will be plugged into my phone (iphone 11) for...