@Kosst_amojan
I did a complete analysis of the speaker in XSim. Gathered acoustical and impedance plots. The only thing that circuit did was lower the impedance.
You can remove one cap and resistor section with nearly zero effect to the voltage transfer function. With a "normal" low pass filter, you can raise the impedance, with the identical transfer function, and eliminate the resistors.
I’m confident in my conclusion: The crossover was deliberately designed to have a low impedance point.
Best,
E
I did a complete analysis of the speaker in XSim. Gathered acoustical and impedance plots. The only thing that circuit did was lower the impedance.
You can remove one cap and resistor section with nearly zero effect to the voltage transfer function. With a "normal" low pass filter, you can raise the impedance, with the identical transfer function, and eliminate the resistors.
I’m confident in my conclusion: The crossover was deliberately designed to have a low impedance point.
Best,
E