Just had a random thought and so putting it out there to see what everyone’s take on it is.
So - I hear on a lot of websites that Yamaha NS10s are popularly used for mixing on. Due to them being pretty crummy as monitor speakers, but mix engineers saying that if you can get a good sound out of them, it will sound good on anything.
I wonder if this theory is reasonable for mixing on something like iPhone headphones. I mean, they must be a general enough representation of what music would sound like on a large range of playback media. Since we never can tell if our music will come out of TV speakers, a PC monitor, Cinema screen on high-def system. Perhaps mixing should be done on something average quality.