https://www.head-fi.org/threads/ifi-audio-earbuddy.859737/ "Basically, a smart device like your iPhone or tablet or a DAP (Digital Audio Player), uses a digital volume control and most of us typically use just 60% of the available volume. On most headphones or IEMs (in-ear monitors) any louder than 60% would blow your head off. And it normally increases annoying background noise in the form of hisses or hums. The trouble with this is that you are not getting the sound quality that you expect/deserve. Dynamic range is effected so the distinction between the quietest and loudest parts of the music is blurred. And resolution is distorted – it’s like a jigsaw puzzle with missing pieces – you just don’t get the complete picture." Sounds like BS to me?