Welcome Yogi and thanks for sharing the Interesting and educational video! Watched the second best speaker video too. Had not seen the ”best speaker” video before but PE has sold the transducers for a while. I really did not have a good wall to try them on and my wife would not tolerate the wire on the wall either! Using ceiling panel material as a diaphragm and turning it around makes it a bit more palatable.
Have you built some of these? They seem a bit delicate and you live much closer to Amir than I. Keep in mind, he is swamped with speaker testing requests and these are rather unconventional. For that matter, given their nature, not sure the spinorama would be meaningful?
Ya, my GF sees them as a blank canvas and is interested in painting them. His first $30 panel speaker video mentions that the Styrofoam panels can be spray painted as long as the there's enough distance, 9" I believe but check for yourself. It seems that if you hold the spray nozzle too close to the surface the chemicals don't have the time to disburse and eat away at the Styrofoam.
I have not built them and admittedly I lack much confidence in my DIY-FU.
Thanks for the kind words. On that video, commercial versions of those speakers have existed for a long time. They are OK if you don't push them in bass. Their main use is to build "invisible" speakers where they are blended into drywall, or wood cabinets. There is an AES paper where they computed their preference scores and they were really bad.
They are put in there to help with that so would be good to measure.
Agreed on the bass. I wonder why the video made no mention of supplementing with a sub/s. Would you measure them with and without a sub? And would you need all eight panels for measurement?