Thanks for this free interesting tool test for speakers...
It prove that my speakers were not bad at all...
One day it would be interesting to test my speakers before my damping anti resonant double set of dyssimetrically compressed springs use and after...
@tomic601 - thanks, I think?? Ha. I know I’m opinionated, I am here also to learn from this forum. And so, I thank you all (even the ones who may not like what I write) if there’s something I have or can learn from you, when I am ready to receive new/better knowledge.
I was introduced to an excellent test of speaker cabinets from my old boss and friend, he played a frequency sweep through a pair of reasonably well regarded mid priced speakers and you could hear the multiple node breakouts the enclosures made throughout the sweep. Astonishing to discover exactly where (frequencies) the cabinets exhibited distortion in playback.
https://www.audiocheck.net/testtones_sinesweep20-20k.php