*Please do not blame me or others on this site for any damage done to headphones* *You should not need other resources if you have an HD800. Instructions are clear* *This post will be kept updated in case of future additions to the mod. Comments start with #2* --To disassemble: Remove pads and dust covers Remove outer plastic silver ring from cup Remove T8 hinge screws from hinge --Reassemble in reverse order --Avoid letting loose screws near driver because it is magnetic **********SCREWMOUNT MOD********** Reasoning: The Screwmount mod provides an alternative way to mount the HD800 driver. The StefanAudioArt mod also does this, but I have never seen the mod. It is proprietary, expensive, and incurs a possibly long wait. This method of mounting allows for the removal of the dreaded metal ring. Until now, this has been a puzzle. The driver is very securely mounted, pinched by the four Hex grub screws cushioned by small neoprene rubber "cushions". *These mod is reversible: If you are careful only screw threads will be left on inside of mounting holes* Required: Torx T6 screwdriver Torx T8 screwdriver Hex screwdriver/Alan key Hex socket grub screws, M4 (diameter 4mm), length 6mm 1mm neoprene rubber sheet craft knife/Stanley blade cutting board Procedure: 1) Disassemble. 2) Remove 4 mounting screws from metal ring. Remove metal ring. 3) Remove silver plastic mounting ring and black grill from outside of cup. (This can be done by lifting driver with a fingernail and pushing on inside of black grill with screwdriver) 4) Cut some small pieces of the neoprene sheet to squeeze into the small gaps between the Hex grub screws and the driver. The gap is ~4mm deep and has angled edges so this may require some experimentation. 5) Now comes the tricky part: We will pass the Hex grub screws through the mounting holes (now empty). Screw in Hex grub screws halfway only! This will make next step easier. 6) Insert neoprene "cushions" and replace original metal ring to hold them in place. Squeezing as tightly as possible, screw in the Hex grub screws the rest of the way. Stop when the head of the screw is exactly flush with the black basket frame. Trust me, this is the perfect depth. Note: the holes have a lip on the inside which touches the foam ring. If you screw too far you will stretch/warp this plastic lip. HD800 (disassembled)(Screwmount)(cup interior) HD800 (disassembled)(Screwmount)(cup exterior) Leftovers: metal ring with spongy foam ring silver plastic mounting ring 8x Torx T6 mounting screws black grill **********BIG COIN MOD(?)********** Reasoning: The "dustcover vs no dustcover" debate is as old as the HD800 itself. When I first received her, I compared for myself and was dissatisfied either way. I immediately (after just an hour of deliberation) did this mod and haven't looked back . I'll leave it to others to post impressions since it's a long time since I compared. My feelings toward the change in sound at the time (May 2019) were entirely positive. I did this before I knew about the HD650 coin mod. I'm open to suggetions for other names too. Required: paper pencil pair of compii ruler scissors craft knife/Stanley blade cutting board Procedure: 1) Remove pads and dust cover. 2) using compii, ruler, paper and scissors, mark and cut a circle of diameter 56mm. 3) trace outline of paper circle onto \exact centre of dust cover. 4) place dust cover on chopping board and cut out the outline with knife. //Perhaps use a lighter to tidy edges? Haven't tried. 5) Replace dustcovers and then replace pads. If you have already done the Screwmount mod, then the dustcover should tuck nicely around the driver. HD800 (Screwmount)(BigCoin)(cup interior) Leftovers: 2x circular dustcover cutouts So much more beautiful!