Koss KSC75 Closed Back Mod

thingiverse

Closed back mod for KSC75, has a hole for mmcx connector, and posts that slot into the top I recommend using a heat gun or something to shape it, just make sure to be gentle with the driver, they are EXTREMELY fragile. I have broken a pair You don't have to glue it on, but I recommend putting a small amount of superglue/epoxy on the flat spaces. When gluing, make sure to avoid holes and store upside down to avoid glue dripping on the driver. If you do glue it on make sure the pads aren't under the housing or you wont be able to change them. changes the sound by: increasing bass, makes the sound warmer, decreasing sound leak(don't expect miracles) I think this mod makes the KSC75s look better and improves the bass without reducing what makes them great I also included a step and f3d file, so you can put a logo or something on there EDIT:10/02/20 Pretty sure I am done with designing this now, I made it work with the small screw on type mmcx connectors. the file you want is "ksc75 full closed final 2" I used these connectors: https://www.aliexpress.com/item/32889902202.html?spm=a2g0s.9042311.0.0.45ec4c4dfqN6ti "10 pcs Universal pin socket Female seat Built-in thread nut Mmcx pure copper gold plated copper" EDIT:10/25/20 I was wrong, but I SHOULD be done now, I had to completely redo it and I gave 4 files in here. I did this because the old one had some issues at 2800hz, very painful sounding. But it's fixed now so don't worry about that I highly recommend using either the full one or the regular one. The full one has no cutouts in it, both of them sound pretty good from my short sound demo