Raxumit

I can believe "difficult", "prohibitively expensive", "major hassle", "not in harmony with subscription monetization objectives" etc...

They got rid of the CEO and the new guy is contrite. But will they allow rollback to the old app? Actually fix things? I have no idea...

I would go either infinite baffle subwoofer, or your normal sealed/ported enclosure. There's likely a reason you can't find much on...

The Wiim Ultra is 20% off for Black Friday on Amazon now. I just ordered my third for $263.20 USD.

Given that the Wiim Ultra is about 16% of the price of the $2000 NAD, and definitely has very good audio quality, I would try it first...