@mijostyn ..."I have no desire to resurrect the past. The present is so much better."
One can learn from the past to observe, refine, redesign, restyle and optimize. Many cool designs you see today with speakers are spawned and resurrected from great ideas of the past with new materials and updated engineering to some degree. However, even for musical speakers, technology has not changed all that much. Other areas of audio electronics have progressed much more than speakers past 50 years, actually. This is definitely not a thread about digital zeros and ones.
DSP Bluetooth speaker threads can be found elsewhere, LOL. 🤣