Hello Daphoid,
Hope you are well. SPLs are not everything, these new Axioms are bringing internal digital processing to the signal to clean it up and prevent distortion, bottoming etc... SVS subs do not have digital processing built in, so would be hard to compare the two, since they are not on an even footing.
The cost difference we are seeing is the cost of this new smart amplifier design. If it works as stated, the sound should be very pure with a very flat frequency response. Is it worth the difference? We shall see when the reviews come out. I would give up raw SPLs for a very clean tight bass.
Later,
TonyM
