I did not like some of the descriptions on the link you provided (nothing against you Warp
). They can be somewhat misleading depending upon how it is understood. The explanation of BL for instance makes it seem that you want to purchase a sub with the highest BL factor as it will have the strongest motor. All T/S parameters are interrelated. They are measurements of the sum of the parts working together as a system. For instance you would not choose driver A over Driver B simply because it has a stronger motor expressed in BL. It may have a stronger motor because it has substantially more mass, xmax, or it is simply not a real efficient design and requires a lot of motor force.
I guess what I am saying is don't fget too concerned with any one parameter. They can begin to give an idea of how a woofer will perform but only with much experience. Even then you can be thrown for a loop now and then.
