Electro Dynamic Braking in Mirage M3-si


Hi

Can anyone elaborate what Electro Dynamic Braking in Mirage M3-si's 10inch woofer is please?
Or to point to a resource (brochure?) online where I can read/download about it?

This tech was also in M7-si but absent in top of the line (which is strange) M1-si (and also absent in M5-si).
Also, the first M series (without 'si') had no Electro Dynamic Braking on the woofer (none of the models).

I found this info in the original Mirage Msi brochure and I am very curious to find out what it is. 
Is this something to do/similar to servo controlled woofers?
Does it benefit the woofer control in real life? Why Mirage wouldn't use it in top of the line M1-si though?

many thanks
meekeenz
Sorry I stepped on you toes meekeenz. But I did answer your question first. I said marketing. Dual voice coil woofers have been around for ever and if you hook one coil up the the other backwards all you will get is burned out fuses and voice coils. More BS is spewed about speaker design and mythology to try and distinguish ones products from another's. You can't find anything because there is nothing. It is all just a figment of some marketer's brain who probably does not know squat about speaker design.
Thanks csmgolf

I was thinking of contact him directly already and......tried to search for him on Facebook and LinkedIn to no avail hehe. 

I have already emailed Soundstage Audio now to ask for his email address. We will see what they say. 
It is just strange that there is no info on this tech anywhere on the internet or in the reviews and no one knows what it is about.