[MoOmer]

In this context, I’m pretty sure it’s In-Ear-Monitors; or, the headphones that go in your ear.

I’d also disagree that there’s no difference between price/quality of monitors!

[Existenceblinks]

Sure, p10 and p80 is going to be huge different. As I said, above p90, it's a lot of illusion and subjective .. more like a taste there.