About Socas

SoCas IVS is a small two man business. We design and sell 3D printed adapter plates for various Stax earspeakers and Sennheiser headphones.

I'm sure that we can all agree that Stax produce some of the best headphones out there, but when is comes to comfort of the ear pads, we found them lagging a bit. We decided to change that by creating the SoCas PadMod. It lets you mount your favorite ear pads to the Stax earspeakers and thereby increasing the comfort. Some of the PadMods also alters the sound a bit.

We currently offer PadMods that is designed for the following headphones:

  • Stax SR-L300, SR-L500 and SR-L700

  • Stax SR-207 and SR-507

  • Original Stax Lambdas

  • Sennheiser HD545, HD580, HD600, HD650, HD660S, HD6XX, Jubilee HD58X

If we don't have a PadMod that fits the ear pads you want, please let us know. We will do our best to help you out and create a PadMod that fits your desired ear pads. We are also open to new ideas regarding headphone mods. You can contact us with your ideas here.

We have a small selection of ear pads we can ship with the PadMods. You can find them here.

Who are we? 

Søren Ploug

  • Responsible for 3D design, 3D printing, accounting and maintaining the website.

  • Electronic Engineer

  • 3D printing enthusiast







Casper Mønsted

  • Responsible for 3D design, sales, photos, customer communication and shipping.

  • Electronics technician

  • Hi-fi / Headphone enthusiast