Posted by Talon

I'm going to point you towards the Koss PortaPros. They look sorta retro-ish, but the sound quality is rivaled by none in its price point. Good bass extension with good punch as well, although it might encroach on the mids. It's extremely lightweight and has a nice folding mechanism for portable users. Its actually only about $40, but its by far the best on-ear for bass lovers in the sub-$100 price point. If you want something of a more treble-focused sound and don't mind open back, you can't go wrong with the Grado SR-80i.