Your post above specifies the need to controll gain dynamically. Can you clarify what that means? As I understand it, an amplifier has a fixed nominal gain. It is nominal because there is some reactivity to complex loads. So the gain may at a particular frequency may be a product of the impedance at that frequency. But the overall gain characteristic is fixed (unless of course there are level controls on the amp). Therefore, I don't get what "dynamic control" means. Is the idea that the active cross-over adjusts filtering in real time based on the level of the input signal? What is dynamic about the filter? I thought the only distinction for active cross-overs was that each speaker element is driven by one and only one amplifier, unlike passive bi-amping.
