Found this "out there" diy speakers with interesting explanation and demonstration. Comments didnt disappoint, it seems they are not still on the level of "hi-fi" speakers but something so cheap/good that you might dive into it (invisible speaker ceiling or some other interesting placement).
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The electrical RTA of the Four Seasons clip:
The Easy Listening thing that followed:
Too bad a few tones weren't played, to judge the harmonic distortion.
The Easy Listening thing that followed:
Too bad a few tones weren't played, to judge the harmonic distortion.
Hah, I was just watching that vid this morning before work! He's a good explainer, but someone needs to teach him about speaker measurement. It would also be nice to know how he did the crossover.