Lifted from HF. For your amusement. So - it was raining, I got a bit bored and well... I ended up hardwiring my HD800's. Oh well, these things happen. The HD800 comes apart surprisingly easy, it's definitely a well engineered product. The overall project took me 5 hours or so, but I wouldn't say it's hard. If you can build a crack amp you can definitely do this. Most of the time was spent scratching my head about how to secure the cables going into the HD800, I wanted something nice looking and not just a big blob of superglue. You need some good tools though, miniature torx set for instance. The cable is a professional grade microphone cable with 23AWG oxygen free copper, it's not mogami but very similar. So as you can see what I ended up doing was that I drilled out the old stock connectors and I'm using those to hold the new cable, it's a very snug fit and a bit of super epoxy applied from the top of the connector makes sure that everything stays in place. Working great. New cable in place and ready for hard termination, little bit of presolder on the wires. Now which one was the red HD800 termination point? Hmmm... 50-50 right? Not too shabby. I wanted to be extremely careful not to heat up the internal wiring of the driver, so presoldered wires and a quick dab with the soldering iron was all I did. Done! Neutrik makes good connectors but when you want a bit of bling nothing beats Viablue. Final iteration of the mod made later: Cable sleeve, viablue splitter and 4-pin connector + adapters. How does it sound? It sounds good, very good. Bass is fuller and the treble is softer compared to stock. Is the hardwiring necessary compared to a pure copper cable with stock connectors? I have no clue. As you can imagine A/B comparisons are a little difficult. But if you feel some kind of urge to take your HD800 apart and play with soldering irons... well, I sympathize.