Jonathan wrote:I think (not sure) they're about to begin using the TC sounds LMT motor design. LMT is actually more linear than XBL^2, but I haven't seen the methods used to achieve that, be it more inductance and so forth. Their prototype was fully linear to 45 mm (NOT a typo) of excursion one way, for a full 90 mm of linear excursion with NO drop in BL over the entire curve. http://schismal1.homestead.com/files/LM ... arison.jpg
they wind the coil so it has ridges and valleys...
BL is rather simple to measure, and modify... you've got the flux, and the wire..
XBL^2 modifies the flux field in relation to the wire, LMT modifies the wire in relation to the flux field..
i cant find the post were dan commented on the LMT thing, but the conclusion was that in the end was that it needs a TON of power to get loud and certain pieces add cost to the driver and someone had a prototype and got the result that it needed to run with at LEAST 2000 rms or some crazy thing like that to get loud, damn i wish i could find it.