It's a custom tweaked design, tweaked by John himself. My box even has his signature. Yeah, appears to be how Alessandro did it.

They had an HF1 a year ago or so that was $200 and looks based off the 125i, though I could be wrong. People LOVED those, sometimes resell for double because of the limited run.

At the risk of cross posting, but in case any one is interested:

http://www.head-fi.org/forums/f4/grado-hf-2-review-comparison-thread-426905/

Last edited by oldskoolboarder; 10/28/09 06:20 PM.