I could see getting 6 x HiFiBerry Amp+'s and plugging in one of the outputs to each speaker. One downside to this is that I would be “wasting” half of my setup with the other stereo pair I’d never connect (there is only one speaker per room). It also would cost a lot and it seems to waste resources by having so many amps, but maybe I need that to have a zone per speaker?
Any ways to economize here? I only need a nominal wattage as these are 5" speakers.