To enhance my enjoyment of the SennHD800 I purchased the Moon Audio Black Dragon V2 and Danacable Lazuli to compare with each other and the stock Sennheiser Cable.
Dana Cable Nirvana Headphone Cable for Abyss 1266
This is a TOTL substitute cable for the Abyss 1266
Dana Cable Lazuli "Ultra" Headphone Cables for my Abyss 1266 Phi
Substitute Headphone Cable for the Abyss 1266 Phi's stock JPS Labs Headphone Cable
Rogue RH-5 Headphone Amplifier
Headphone amp and preamp, tube hybrid circuit, can be ordered with or without a phono board and is available with silver or black aluminum face plate.