[davikr]

Check "An in vitro acoustic analysis and comparison of popular stethoscopes" [0]. There's a $8 stethoscope - Mabis Spectrum, with great performance, according to this study.

[0]: https://pmc.ncbi.nlm.nih.gov/articles/PMC6339642/

[throwaway2037]

Hat tip! I found their Amazon page here: https://www.amazon.com/stores/Mabis/page/7C938264-7E20-4C0A-...

Very cheap, indeed.