Up for sale is my Hifiman HE-R7DX JM Stealth + Bass Edition. It was modded twice by John Massaria. This mod cuts any resonance from the cups and increases the bass quantity. They are not bass head level but the overall signature has improved after two mods. The price-to-performance ratio is really good. I have so many headphones that these may have 10-15 hours on them. PP fees and shipping are included in USA.

This is the 3rd different headphone I have purchased from John. I am a big fan of his tunings.

PM me!