Philips SHP9500 Cup Caps

thingiverse

These are special cups made specifically for the Philips SHP9500 headphones, designed to convert them from open to closed headphones at will! While the sound signature does change a bit, and the soundstage will shrink significantly - they still sound great - and isolation is greatly improved. To dampen my cups I employed a specific process: First, I coated / painted the inside of the cup with plasti-dip to seal any sound leaks. Then I added a layer of sound-deadening foam at the bottom, covered it with a thin layer of cotton, about 1-2 pulled apart cotton balls should be enough. Next, I cut out and glued a layer of felt around the outside of each cup for added protection and durability. For the sake of experimentation, I placed a small piece of electrical tape (about 5-10mm^2) as a treble reflector inside the middle of the felt before gluing it in place. Finally, I attached the retention rings to the outer rings of the headphone cups using my preferred method - note that attempting to apply or use this modification may cause damage to your headphones, and you assume full responsibility. Here are the Print Settings I used: Rafts: Don't worry about it Supports: Yes Resolution: Set to 0.2-0.3 for optimal results Infill: Choose a density of 10-30% Notes: * Consider printing the retention rings with support material - it's optional, but might be helpful * Making the cups taller or larger will give you more space to add damping materials, but may increase their size and make them less aesthetically pleasing * These mods could be adapted to work on other open headphones as well * Another option is to make the retention ring taller, then use larger clips on the cups - this makes it easier to install and remove them, but also increases visibility After printing your custom cups and retention rings: Finish the cups by dampening them to your desired level [refer to my initial instructions] Attach the retention ring to the headphones as you prefer Insert the cups and twist them clockwise to lock into place