Building EXCEPTIONAL speakers using MODERN TECHNIQUES

Summary by Krater

The creator demonstrates how to design and build high-performance 3D-printed hifi speakers using hollow-forming techniques, acoustic damping materials, a Tang Band W3-1364SA driver, an ADAU1701 DSP, and a TDA7850 amplifier, achieving professional sound quality that rivals high-end bookshelf units.

From the video

Answers: How do you build high-end 3D-printed hifi speakers?

• 3D printed speaker enclosure design
• acoustic damping materials
• subwoofer horn resp design
• ADAU1701 DSP configuration
• speaker finishing and wood veneer application

What it concludes

• Printing a hollow shell and using it as a form mold for plaster of Paris significantly speeds up print times while reducing acoustic vibration resonance.
• Adding PVA glue during the mixing process of plaster of Paris creates a microscopic level of flexibility, reducing its brittle nature.
• A long subwoofer tube delays audibility of rear sound waves just enough for them to become additive rather than subtractive to the driver's forward sound waves.
• Adding soft automotive acoustic pants, a cotton towel, and sheep's wool effectively stops sound waves from being reflected back.
• Dividing the speaker body into smaller individual 3D-printed parts reduces the likelihood of printing failure from parts popping off the build plate.
• The 3D-printed hifi speakers achieve a flat frequency response down to 35Hz and rival the audio quality of expensive high-end bookshelf speakers.