Demevalos' Guide to adding a Detachable Cable to Beyerdynamic DT 770/880/990

There's now a video tutorial to go along with this! https://youtu.be/tMJu4t7JRUk I recently opened up an Etsy shop, if you're not comfortable trying this on your own, you can send them to me to perform the mod for you etsy.com/shop/demevalos I've been doing this mod for a while now, so I figured it might be helpful to some to create a guide on how to add a 3.5mm jack to the DT 770s. The process is very similar on the DT 880/990 with minor differences towards the end. Shoutout to /u/Badazzg37 for letting me do this to his cans. Do not blindly follow this post! You can have different connections in different spots than what my pictures show, check your connections before soldering anything! DISCLAIMER: If you try this and something goes wrong, I am not responsible. This mod does have its risks involved, proceed with caution. I do not advise trying this if you have never soldered before. You have been warned.

I'll list the tools and materials used here along with amazon links: Weller WLC100 Soldering Station: https://www.amazon.com/gp/product/B000AS28UC/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 Weller ST7 Fine Point Tip: https://www.amazon.com/gp/product/B0002BSP4K/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 WEN 2307 Dremel with 100 Piece accessories: https://www.amazon.com/gp/product/B00A8DXKXS/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Philmore 3.5mm Snap-in Mount Panel Jack: https://www.amazon.com/gp/product/B00LXOIVKI/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1 AstroAI Digital Multimeter: https://www.amazon.com/gp/product/B01ISAMUA6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 Blu Tack: https://www.amazon.com/gp/product/B00I42EOJE/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 Mogami 2893 Quad Core Microphone Cable: https://www.redco.com/Mogami-W2893-Miniature-Quad-Microphone-Cable.html

First step is pulling the pads off. They come off easily with some careful pulling. After they're off you'll see this ring.

Pop a thin screwdriver carefully in the openings seen here, and pry outwards to pop the ring out. Be careful not to push the screwdriver in towards the driver - I've punctured the white parts in the next picture doing this.

Once the ring and foam are off you'll see this. It may be a little tough to get out if you've never taken them apart before, just turn it upside down and give the outside of the cup a few taps to knock the whole thing out.