Amazon has the Altec Lansing UHP606 Backbeat Pro Reference Earphones for $19.99, originally priced at $99.95. Its “armature is a high-precision microstructure that generates and moves the natural sound through the earphone chamber.” Product page.
High listening volumes not only distort sound, they’re not healthy. A superior seal to block out ambient sound is critical. Once that’s achieved, only the highest definition micro-speakers will do. BackBeat Pro earphones deliver both.