new fi btls
Here are a couple of pics of the N1 motor. Little odd looking compared to most designs, but form followed function. This is rather close to final version, except that material for top and bottom plates is a little thicker (for future profiling) and I wasn't paying enough attention when I wrote the code and wrapped the chamfer all the way around when it doesn't need to be where the spacers/end caps mate.
This is the standard replacement for the Gen1 and Gen2 BTLs. It has similar power handling and options. The heatsink/inductance ring which was an option on the Gen2 is now integral to the design. We spent quite a bit of time testing the sinking and cooling to ensure that the Neo magnets used would not suffer degradation due to heatsoak (a problem which plagues other designs). Form followed function with the motor and is why these new versions are a fairly radical departure from the last designs.
Weight loss is significant compared to the 11.25" diameter magnets used in the Gen2 motors.
More info to come both on the site and here. We are trying to get pics for the N1 and N2 drivers up on the site over the weekend to start selling on Monday morning. There will be an initial approx 4 week lead time for the N1 and N2 subs due to some raw materials not arriving for another 3 weeks. But if these sell even remotely close to the Gen2 BTLs we expect a healthy list of early adopters.
Keeping true to form at Fi we have an industrial application that uses these 4.500" NdFeB "pads" and felt that the trickle down to car audio might be in order for them.
The first iteration uses 3 of them and simply has more Gauss than the 3" pole can handle.
Coil has a very healthy inductance/heat ring with external fins for cooling and keeps the heat out of the magnets (which seems to be a problem with some other car audio designs).
In playing with this proto it is definitely geared towards SPL, given the motor force.
Let us know what you think. Im hoping its not too out of the ordinary to be marketable... as it truly performs.
N1 - SQ oriented
N2 - Daily pounder
N3 - Straight SPL