Well I know the Audeze iSine iem's have not out for very long, but begs to b asked, how do SRS-002 compare with iSine? They both are large by iem standards. What little I have read on the iSine seems to point that the Audeze are better than the Stax. The Stax comes with a small battery powered amp, the Audeze does not. The Stax requires a special amp, the Audeze can be run directly from a DAP or headphone amp. Sound wise, is what I would really like to know how they compare. I suspect the Stax may have better attack, behind an electrostatic, and the iSine may have better extension in the bass and treble.