Passive 6 dB to 24 dB audio crossover design program
for Two-Way and Three-Way Networks


Click on a Button.

This Crossover Application will not only design the basic
2-way crossover that car audio enthusiasts merge to form 3-way systems, but
it will also design true 3-way crossovers that are more suited to home use.

The 3-way calculator is limited to bandspreads between 2 and 32 octaves.
In other words, (fchigh/fclow) can't be less than 2 or greater than 32.

The formulas in this application are based on a 5 part article in Speaker Builder
Magazine from 1985. The article is "Passive Crossover Networks" Parts 1 through
5 written by Robert M. Bullock III.

Two-Way Crossover Calculator
Low Frequency Driver High Frequency Driver
Low Rolloff Frequency High Rolloff Frequency
Low Freq. Driver Impedence High Freq. Driver Impedence
Lowpass Slope HighPass Slope
6 DB Per Octave 6 DB Per Octave
12 DB 12 DB
18 DB 18 DB
24 DB 24 DB
Linkwitz-Riley(APC)
Butterworth(CPC)
Compromised(Comp)
Linkwitz-Riley(APC)
Butterworth(CPC)
Compromised(Comp)
Voltage Magnitude (0-3)
Voltage Magnitude (0-3)
Three-Way Crossover Calculator
Select Crossover Type Select Bandpass Type
Linkwitz-Riley (APC) C-Bandpass
Butterworth (CPC) T-Bandpass
Gain Resistor (Y/N)
Low Driver Mid Driver High Driver
Frequency Low Freq. High Freq. Frequency
Impedence Impedence Impedence
Lowpass Slope BandPass Slope HighPass Slope
6 DB 6 DB 6 DB
12 DB 12 DB 12 DB
18 DB 18 DB 18 DB
24 DB 24 DB 24 DB
~~~~~~~~~~~~~~~~~~ Positive Polarity Bandpass ~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~ Negative polarity Bandpass ~~~~~~~~~~~~~~~~~~
Calculation Results
Voltage PeakPower Dip Voltage PeakPower Dip
C11 (LowPass) L31 (HighPass)
L11 (LowPass) C31 (HighPass)
C12 (LowPass) L32 (HighPass)
L12 (LowPass) C32 (HighPass)
Calculation Results
Low Pass Mid Pass High Pass
C11 C21 L21 L31
L11 C22 L22 C31
C12 L23 C23 L32
L12 L24 C24 C32
Gain Resistor GR