BL Product, is the product of B the magnetic strength of the motors' magnet , and the Length of voice coil in the magnetic gap.
It is related to the efficiency of the magnetic motor. All other things being equal more BL product is better than less and more magnetic motors (ie drivers) are better than fewer.
It is related to the efficiency of the magnetic motor. All other things being equal more BL product is better than less and more magnetic motors (ie drivers) are better than fewer.