I understand that there was one little problem with the "Live versus Recorded" AR demos, Skep....
The "Live versus Recorded" AR demos began with the musicans playing "live". The musicans would continue to go through the motions of playing (pretending to play without producing sound) when the recording was switched on. Subsequently the musicans would lay down their instruments as the recording continued to play. The audience was wowed! Your eyes will dominate your ears.... which is why sighted listening tests can be a problem. I can tell you that no AR woofer could articulate, in any way, nearly as well a Tympani woofer, and both my AR3a woofer and Tympani woofer were flat down to 39 Hz.