@kenjit wrote: "Why are you so eager to prevent a discussion? What harm is there?"
You have demonstrated an agenda to disparage Roy Johnson and Green Mountain Audio, and you have done so unfairly. That’s not a "discussion", it is trying to do harm to someone’s reputation and business.
You probably don’t realize that you are being unreasonable (which happens when we let emotions call the shots). Let me show you. You also wrote:
"If you go online there are crossover calculators. Plug in 3khz 1st order, and you get 0.21mh on the 4ohm woofer which is the exact value used by green mountain. So no measurements were involved."
You could not possibly know that "no measurements were involved." That statement is unreasonable and unfair.
And there is absolutely nothing sinister about .21 mH corresponding to a 3 kHz first-order lowpass filter into a 4 ohm load. ANY inductor on ANY woofer is going to correspond to a first-order lowpass filter at SOME frequency.
It is possible that an emotional part of you thinks this kind unfounded attack constitutes "having a discussion", but switch over to your rational side. "No measurements were involved" is a completely unfounded and unfair conclusion. There is no way you could reasonably come to that conclusion based on the information you have.
(For anyone who is curious, this might be of interest: In practice, a single inductor NEVER results in a first-order electrical rolloff because the voice coil’s inherent inductance increases the impedance of the load the inductor sees as we go up in frequency. The net result is an electrical rolloff of less than 6 dB per octave. So other components are used to modify the impedance of the load that the inductor sees. And the inductor may or may not end up seeing a "textbook" constant-impedance load - it all depends on what the designer needs to do to meet his targets in the phase and frequency response and impedance domains. In other words, the additional components may result in the inductor seeing a load whose impedance intentionally rises and falls at different frequencies if that is what works best. Crossover design is about how the components all work together with the drivers’ characteristics to give the desired end results.)
Kenjit also said, "I would love to hear your explanation for [not using baffle step compensation]."
When you have demonstrated that you can have a discussion in good faith, we can have that conversation. But it will have to be in another thread - this thread is not about my stuff.
So I have a question for you, Kenjit: Does treasuring your grievances against Roy Johnson and Green Mountain Audio make you happy? I’m not asking whether or not your grievances are "justified" - grievances are ALWAYS justified to the person who treasures them. I’m asking, do they make you happy?
And if not, why do you hold onto them? Maybe it’s because, it never occurred you that doing so is a choice (and you would not be alone in that!).
If you choose to, you can simply say to yourself, "I’m tired of being angry (sad, discouraged, bitter, whatever) about this. I’ve done it for long enough. My grievances have offered me nothing that I truly want, so I’m letting them go." It may not work the first time because it’s a new way of thinking, but give it a fair chance.
Then start a thread about baffle step compensation and we can have that conversation.
Best wishes.
Duke
