Hi, I'm selling my HD800SDR and ADL iHP-35Hx-XLR cable in excellent condition. The HD800's S/N is #4xxxx has been used for about 3 months total. A pair of SuperDupont mods bought from Sorrodje are perfectly installed. They help alleviate the HD800's inherent 6kHz treble spike and I feel is a must for every HD800 owner. https://www.innerfidelity.com/conte...-and-delightfuland-french-diy-response-page-2 The iHP-35Hx-XLR is Furutech/ADL's flagship OCC copper balanced cable for HD800 which uses Furutech's top-of-the-line rhodium carbon fiber connectors. Price for a new cable is $431. It has been used for about 1 month total. https://www.thecableco.com/Product/iHP-35Hx-XLR-Headphone-Cable Selling the HD800 with SDR mods for $900, and the cable for $300. When bought together, I'm selling them for $1100. Please PM me if interested.