If you've ever heard of #NeuralAmpModeler you probably know it's free/open-source... Well, part of the FLOSS benefits is that the community actually matters: as development of the new #NAM A2 architecture is mostly complete, they've put together listening tests open to anyone:
tone3000.com/blog/nam-a2-liste…
I assume the more data the better, so feel free to give those tests a try (even if you don't see yourself as a musician/producer) and spread the word!
