I modify the Fane CD.131 Compression Driver. My goal in this video is to compare the measured performance of various modifications. I then attempt to lower the resonance of the diaphragm to get bandwidth extension down to 600Hz. The goal is to understand and learn the performance aspects and the influence changes make to the overall performance balance.
Product Links
https://solen.ca/products/speakers/pro-speakers/pro-compression-drivers/cd-131/
http://www.daytonaudio.com/index.php/dats-dayton-audio-test-system.html
https://www.parts-express.com/dayton-audio-umm-6-usb-measurement-microphone--390-808
https://www.roomeqwizard.com/