Are IEMs an option? How important is portability? Aesthetics? I use thr HiFi Man RE0 and Shure 840 for iPod use. Both are excellent and, to me, an improvement over the PortaPro and iGrado in terms of overall sound quality.
The RE0 is an IEM and the 840 is a closed can. Though the Shure is not as portable as the Koss.
The RE0 is an IEM and the 840 is a closed can. Though the Shure is not as portable as the Koss.