Danny,
I know posting this issue on AC was not an easy decision for you to make, but it had to be done because John left you no other way to discuss this instant grievance based on what the measured results he had posted on his monologued blog implied. Yes, you had to stand up for what you perceived as a wrong done to you personally. The tone of his email and remarks on the results of the measurements were obviously negative. Good show for putting this on the forum!

Okay, not being an EE, audio DIYer, psychologist or psychiatrist, I have learned way more than I thought I would from a technical aspect as well as the interaction of human beings.
I love how the Trolls come out of their inky dark shadows to have their self-righteous voices heard. Oh yeah, lets not forget about the piling on Danny folks either. All the while saying they are not trying to speak for John or side with him, they are just trying to espouse the true technical speaker driver rosetta stone.
Danny has every right to explain he feelings on John’s measured results and how he was treated when he tried to have a dialogue with him (he tried via PM diplomacy). John decided to be dismissive and downright arrogant and rude. As a member of the human race, I feel Danny has approached this matter in a very civil and balanced style considering it is an attack on his livelihood.
On the technical side of the issue, I understand what all parties are saying up to a certain level of competency. The bottom line for me is how does this driver perform in its intended end use application. I believe Danny has addressed it by talking about XO design and the parameters in which the M130 operates as well as all the other competitive woofers for a given speaker. I think more important is how his designs (solely or jointly with another designer) are perceived by customers and reviewers? In my brief Internet search, he seems to be in the top percentile of designers/manufacturers who are thought of very favorably by both parties.
Are Danny’s drivers and speaker designs the best of the best bar none. Nope! Has Danny made products that were not stellar performers? Yes, and he will be the first to admit it and tell you how he has improved from those missteps. Danny, like any great designer/experimenter, is always looking beyond the horizon to see what may be possible. It’s not that he’s not ever satisfied but rather it’s more of trying something new and different to see how it works. Heck, look at all the work he did on those stupidly sick BB Insignia speakers. He did it out of curiosity, passion and fun. He then passed all of his vetting and discovery to everyone (and offered a mod kit for a very modest fee to those who wanted it). Danny has always been very approachable and tolerant of neophytes like me.
I am a fan of Danny’s because he has never been condescending or self-important and has repeatedly shown me he was genuinely curious and interested in my opinion and impressions. Why? Because that is one of the ways he learns how things are working out in the field. More business leaders should practice Danny’s business acumen model.
Peace!
L
PS Geez, I thought maybe Danny would jump on the father of baby Nicole bandwagon!