3-Way Crossover Calculator Designer Tweeter Impedance (Rh): Ohms Midrange Impedance (Rm): Ohms Woofer Impedance (Rl): Ohms High Crossover Frequency (fh): Hz Low Crossover Frequency (fl): Hz Frequency Spread (fh/fl):8 : 3 octaves10 : 3.4 octaves Bandpass Gain (g): db Crossover Type: 1st Order Normal Polarity 2nd Order Reverse Polarity 3rd Order Reverse Polarity 3rd Order Normal Polarity 4th Order Normal Polarity Get help for the 3-way Crossover Designer Use the 2-way Speaker Crossover Designer instead See the Design of a Sample 3-way Crossover Read the Crossover FAQ