tomp wrote:
You might be able to do the Watkins alignment but the coils are equal impedance in these drivers which they are not in the Watkins driver. In truth, the woofers are capable of far more linear volume displacement than the Watkins so with DSP you should be able to blow the doors off the Watkins drivers. As far as I know the Watkins crossover is a passive way to deliver more power to the driver at resonance. However, if the driver is properly designed you should not need to do that. The fact that the impedance of a driver goes up at resonance and draws less power should be of no consequence because at resonance, mechanically the driver motor is moving the cone without much assistance from the amp. What you have to look at when resonance occurs is the Q of the driver. That will determine the response far more than the amplifier.
That's the thing about theories -- they're just that -- theories. I had to replace my Watkins woofers in what is now my home theater system. I dropped in 12-inch 4-ohm dual-coil woofers from Madisound and they have been working perfectly. Running a movie like "Dunkirk" the room shutters from the deep bass pressure when bombs go off. The crossover was not changed.