12db/Octave
 

Linkwitz-Riley      Butterworth      Bessel High Pass Impedance: Ω Band-Pass Impedance: Ω Low Pass Impedance: Ω High Frequency: Hz Low Frequency: Hz

		C4 = µF L4 = mH       C3 = µF L3 = mH C2 = µF L2 = mH       C1 = µF L1 = mH
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Linkwitz-Riley crossovers match attenuation slopes so that system response is flat at crossover point.

Butterworth crossovers yield to a peak at the crossover frequency.

Bessel crossovers have a frequency response between Linkwitz-Riley and Butterworth crossovers.