These $100 Scrub Daddy headphones have better frequency response than some flagships

[Redaktion]

A sound engineer built high-fidelity headphones using Scrub Daddy sponges and 50 mm dynamic drivers. The 1-of-1 project sold for $100 after measurements showed a flat bass response, very similar to high-end models.

https://www.notebookcheck.net/These-100-Scrub-Daddy-headphones-have-better-frequency-response-than-some-flagships.1280041.0.html