Budget is $50-100
Priorities: 1) comfort, 2) sound quality, 3) easy to drive with an iPhone/iPad
Music styles: 1) Progressive metal (Rush to Opeth), 2) thrash/speed metal (Big Four to Lamb of God), 3) experimental (Melt Banana to Alcests). I do enjoy some good old fashioned Black Metal (Emperor, Gorgoroth) and Grind (Carcass) but sound quality is not a concern with these.
Sound signature: I prefer something "warm". I'm not a bass head by any means but I want to be able...