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In Reply to: RE: Are my ears really that sensitive? posted by Satie on September 10, 2014 at 14:14:39
That's not a damping resistor. A damping resistor would be in shunt with the driver, not series.
Also, the changing value of the tweeter series resistor will not affect the other drivers. Once again you're being confused by the voltage source aspect of the power amplifier and how current is "distributed." Yes, more current to the tweeter, but current draw to the other drivers will be unchanged.
You really need to work on your understanding of these issues.
Cheers,
Dave.
Follow Ups:
Re Damping resistor - acknowledge the incorrect use of the word.
Re current distribution - depends on how much reactive components are "isolating" the other legs - in this case you are obviously right because of the series capacitor.
The large capacitor feeds both networks, but nominal tweeter resistor changes like Davy is experimenting with will not change the midrange drive level. However, if the tweeter fuse were to blow, ie, creating a LARGE value resistor for the tweeter, then you would see about a 1db increase in the midrange drive level. But not in the bass level.....that section is isolated from the mid/tweet section so it wouldn't matter.
The power amplifier does most of the "isolating" not the reactive components in the crossover network.
Cheers,
Dave.
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