Unfortunately I damaged the 12" early (1 coil is at 2x Re -- one winding is out on one side so will also change BL by about 25%) on so that is not possible until I get more cones in (only have 1 of each for now).
I can measure the 10" once it gets fully charged; we are working on getting our own magnetizer by the time these are production but for now I'll have to send it off to get production level motor force
A couple days ago, Jr., (the deaf guy from previous video) came back and brought a few of his sons, niece and nephew with him. They wanted to hear the beat. I have 5 seats so its no problem!
I did get a little too happy with it last night when I first fired it up -- you'll hear a small metallic sound because of some slight damage I did to it then (woops!). Either way I was still able to get a good test out of it for this video and show it in action -- with more testing to come as we get more prototypes together. The good news is I'll be able to make it even tougher on production thanks to my mistake =)