What happened to my crossover?

[kirill007]

That would take a lot of time, but I'll explain it quickly.

A crossover is a cut-off filter, it's a high pass filter (and a low pass filter).

In cheap crossovers there is only a passive high pass filter to block out the high frequencies.

A high pass filter consists of a capacitor and a resistor in series ( a coil, in this case=speaker).

The capacitor is chosen so it cuts off the frequencies you want it to cut off.

Low frequency= high reactance, high frequency= low reactance.

And as we all know, Z=R+X (resistance+ reactance= impedance)

So the resistance stays the same, but the impedance is a lot higher at low frequencies so the tweeter or subwoofer(subsonic) will draw less power.

If you put the capacitor in parallel with the resistor, you get a low-pass filter.

Because the capacitor has a lower impedance at higher frequencies, the power will flow through the capacitor instead of the resistor(or coil in this example).

Less power goes to the speaker at high frequencies= cut off above certain frequencies.

Just like how your subwoofers/midrange/tweeters/... impedance will change and the impedance graph will reflect the frequency response of the driver. (but obviously a subwoofer isn't just a coil aka a inductive load. Since it's a coil in a magnetic field producing a magnetic field, which complicates things)

EDIT: to answer my own questions, impedance is affected by the crossover, especially above/below the cut-off frequency(COF), above the COF it will increase the total impedance(below it will act normal if it's a low-pass filter, and vice versa for a high-pass), it creates a cut-off frequency by either increasing or decreasing the impedance that is seen by the amplifier.

[poorfish88]

i was just going off the ohm load at my xover.

how they break Down inside.. never cared to find out. gonna ditch them very soon anyway

You know just enough to be dangerous.

So,umm it's not this? LULZ