i agree, I feel the same with my studio monitors in my home office. The issue seems to be that flat frequency response with a full range is extremely hard to ac

i agree, I feel the same with my studio monitors in my home office. The issue seems to be that flat frequency response with a full range is extremely hard to achieve with IEMs, there is something to the room and distance transfer function that is missing to IEMs, and even headphones. Thats why you're not supposed to mix on your headphones. You can master some in headphones, if you know how they compare to a room, but not in any IEMs I know of, but mixing exclusively in headphones is considered a no-no by all professionals.