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In the Forum: Horn-Loaded Speakers
In the Thread: The Kato-san's Goto system
Post Subject: I do not think anybody needs it.Posted by Romy the Cat on: 5/23/2017
Josh, I do not have a definitive answer to this question with witch I feel comfortable. I need to say that I had a multiple experiments in multiple audio fields and I always felt that excessive or too limited magnetic force is not always complimentary and it should be a proper balance between magnetic force, suspension, moving mass, damping methods, driver loading mechanically and electrically. So, if you take under consideration and formulate an absolute perfect magnetic force per a given environment then you very soon discover that this “absolute perfection” is achievable only for a single point in frequency response. An octave upper or lower you are not in ultimate magnetic force vs environment ratio. Well, it is very similar to many other moments in audio. 
 
Answering the question you ask my speculation would be that here we have in place a phenomena of a moving mass projected to minimum currents.   To drive ultra-low mass HF diaphragm you need a few mV and the diaphragm exert pretty much with no mechanical inertia. To drive a bass driver with the same minimum voltage you face much larger excursion of diaphragm and consequentially you face much heavier voltage rollback from the diaphragm pulled back by suspension. So, we flood the bass driver with more power (same voltage more current) to flood a driver with amp loading. To a degree the effect goes away in you runs positive feedback in the amp and drive the amp with a negative impedance, then you can magnetize the driver as much or as little as you wish: the effect will me much less prevalent.  Well, to a degree you can mitigate the effect of overly-manganesed bass drivers by idling the driver loading (by the amp) but I personally did not make those experiments and for me it is pure hypothetical presumption. 
 
I think it should be difference between properly magnetized bass drivers and over magnetized bass driver but idled loaded. It should be similar to dropping VTF for .2g and changing at the same time VTA for a degree. But is it impossible to foresee how it will be in case of a given compression driver. Unfortunately I do not see any serious bass compression drivers users out there who would go for sensible bass compression drivers experiments. I do not particularly blame them as it is a hugely expensive and very time intensive labor of love that will hardly bring any gratification besides the admiration of a few obscure audio lunatics, like me.

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