Originally Posted by bennettprescott
Maybe I misunderstand your point, but I would say the opposite. The suspension is very strong and finding materials to design these high stiffness suspensions that are also durable is one of the largest challenges in professional transducer design.
Yes, I must suck with describing stuff. I´m sorry for that. You got very good factical point though. I didn´t exactly think about this "situation" you proposed.
What I meant is, that if the motor force is in greater ratio compared to the restoring force in working range, the influence of the spiders and surrounds is lesser. If the ratio gets from 20 to 10 (double the stiffness) in cone excursion compared to resting position, it is very different to ratio getting from 2 to 1 with weak driver....
The devil is in the details though, so we might find that real drivers don´t run much further with this. It is not that simple at all with real drivers, I'm aware. Depends on many things, the most visible is Bl decreasing in cone excursion. Yet, it gets plus points in my book. High Qms, Low Qes, and Qes with Qts being nearly same gives the taste of it. But TS parameters only can be an indicator, as it has no way of knowing how the suspension stiffens up in excursion, or if there is a brick set at 2mm excursion to stop the driver completely. Klippel measurements show this in better light.
The description of the coil situation is perfect. I guess we got caught in the short story description too much.
I knew about different gap size due to the flux density found in the specs. I knew about that it is not that good to simply count with gap height, because there is magnetic field outside of it. I also knew that double the wire doesn´t mean double the coil volume. Yet it all was not sufficient to offset the basic volume math to get the wire into the gap. With split winding coil, we´re now getting into that territory. All makes sense now. Thanks for your patience with us, and all this help.
For the "Essential" part of the response, I hope that it has been established that you, B&C guys, don´t waste your time with bunch of noobs with pocket calculators. (Welp, I might be guilty of often dumbing down complex problems for pocket calculator to get moving fast with educated guess first).
If you have the chance and mood, send my thanks to the B&C staff, technicians and engineers for their work and for their will to provide informations.
We´re getting to the awkward point it might sound like stupid competition wants to start their own business with all that info. :-)