EasyEffects can apply a generic improvement for most small speakers.

Kittenlabs has a writeup of using Room EQ Wizard to measure impulse response of your specific speakers to create a proper correction. The results are pretty dramatic on a GPD palmtop.

https://kittenlabs.de/blog/2025/04/06/gpd-pocket-4-speaker-d...

HN post: https://news.ycombinator.com/item?id=43635295

> Even with very suboptimal measurement equipment (cheap microphone, questionable audio interface), we can clearly see the sloped bass response

I've always wondered with this, how do you know you're not just measuring the frequency response of your mic?

Thanks for the links! I'd been searching (futilely!) for that HN post, I knew I'd seen it and wanted to use it for my framework too.

If you haven't watched the video btw, I highly recommend it. It's quite amazing how much difference a bit of software can have.