I designed a custom PCB to interface a microcontroller with five potentiometers, enabling simultaneous volume adjustments of multiple sources through programmable macros. The mixer is backlit with RGB LEDs, adding a dynamic and visually appealing touch, with each potentiometer illuminated to indicate different functions. To house the PCB and potentiometers, I designed and 3D printed a custom enclosure that not only protected the components but also provided a sleek, ergonomic form factor. This project seamlessly integrated hardware design, user-friendly controls, and aesthetic elements to enhance my audio management experience.