Pbc,
No, it is not a feedback servo arrangement. The custom written code for the DSP is programmed with the characteristics of the driver (which we designed, so we know its characteristics and limits) as well as those of the digital amp, which is also designed in-house. Because the two work in concert, controlled by the DSP, it is also why it's impossible to overdrive the sub. To go into this in greater detail would require both the input of Tom, our senior in-house engineer as well as Steve, who writes the codes. It would also go beyond what Axiom is willing to divulge.
Regards,
