Reverse-engineering my speakers' API to get reasonable volume control

For those considering buying speakers: (1) do it, (2) get passive ones and a separate amp. Honestly it’s such a mature market that buying these active speakers just creates e-waste. Keep the e-waste to the amp. You can get really solid speakers for $300 and a cheap amp with BT for $50-100, replacing them basically independently depending on your needs.

Quality of active speakers are really good these days, they have matched amps and speakers from neumann, genelec etc also has active crossover which is superior than any passive setup. Mature market sure, but even companies like KEF who didn't offered or focussed much on active systems, have growing range of options now.

Nobody is arguing their quality is bad, but that amps die long before speakers die. Do passive speakers even die?

Also, online services built into these will die before the speakers do.