This is only true with no HP filter. Then it's a much more manageable 500W@11.5A, or ~40V.
And yeah, VCAD is quite nice. There's a lot it can't do, but appreciating it's limitations and accepting it's workflow can allow a lot of interesting experimentation. It's easy to learn about phase, DI, cardioid concepts, crossovers and perfect/imperfect drivers. I wouldn't trust the enclosure tools too much, but it's a helpful resource if your information is valid.
Not sure I follow this reasoning. Audio amps behave like voltage sources, and to get the transfer function you modelled, your amp needs to put out 57 Vrms. The current drawn by (and power delivered to) the driver will depend on the system impedance. I agree that through most of the passband your amp will be delivering much less than 500W per driver, due to the impedance being higher. But if the amp is not capable of that voltage swing to begin with, you won't get the predicted output.
Honestly I'm not an EE wizard by any stretch of the imagination and I'm open to hearing more about these limitations. As far as I know, the voltage draw is per frequency, depending on the impedance of my system, which also varies by frequency. The draw is in watts, but the impedance changes the Amperage, which changes the total voltage.
Something that may have been overlooked here: I have jury-rigged the Shelv LP filter to be a global gain set to -6dB to offset the L-R transform below it. This normalizes a peak a 1kW @20hz, which is supposedly what the Behringer is capable of at 4 ohm bridged. So according to VCAD, my apparent and real power is much lower. Will it still draw the same voltage, even with the preamplification filters applied?
Happy to learn more.
Something that may have been overlooked here: I have jury-rigged the Shelv LP filter to be a global gain set to -6dB to offset the L-R transform below it. This normalizes a peak a 1kW @20hz, which is supposedly what the Behringer is capable of at 4 ohm bridged. So according to VCAD, my apparent and real power is much lower. Will it still draw the same voltage, even with the preamplification filters applied?
Happy to learn more.