Quarter Wave transmission Line

thingiverse

This is a cutting-edge transmission line speaker box that I meticulously designed, leveraging the fundamental principle of utilizing the speed of sound to significantly amplify the output of the speaker. By cleverly positioning the speaker to push a sound wave backwards into the box, it perfectly synchronizes with the forward motion of the next sound wave exiting from the front of the speaker. This innovative design relies on a 50 Watt Bluetooth amplifier, paired with two Faital Pro 3" Full-Range Woofers 8 Ohm for unparalleled audio quality, as well as a Kaster 12V 6A power supply and a selection of wires for seamless connectivity. To bring this concept to life, I utilized the impressive capabilities of my reality CR-10 to precision-print the housing, incorporating intricately designed holes for the speakers and amplifier, along with a strategically placed raceway for efficient wiring management. However, I had to revisit the project to drill and tap the housing holes to accommodate 6-32 screws. In addition, I fabricated the sided pieces from 1/8th inch acrylic using a Redsail Laser cutter, requiring me to carefully enlarge the holes to match the dimensions of the screws. To secure the amplifier in place, I opted for laptop screws from an existing kit, ensuring a sturdy and reliable setup. Despite its impressive design, this model is not scalable to accommodate larger speakers due to the critical relationship between enclosure length and tuning.