Crossover PCB designed for a range of 2 way passive crossovers with attenuation on the high-pass section.

Dimensions: 146 x 111mm

For standard symmetrical Butterworth filters, the component values will be the same for both high pass and low pass sections.

L1 is the low pass inductor, and will usually be physically larger as it will handle more power than the high pass inductor.

L2 is the high pass inductor, and in higher power / high quality applications it is preferable to use an air cored inductor to reduce distortion.

C1 is for the low pass capacitor.

C3 is for the high pass capacitor.

R1, R2 and C2 are to allow for EQ on the high pass filter.

Need some help calculating values? Why not try our crossover calculator: Crossover Calculator

Select the filter type, frequency and driver impedances and then click the upper 'CALC' button to get the values you need for your crossover.

The PCB has the high pass and low pass marked with standard + and - connections. It is very common to connect the Tweeter (High Pass) in reverse phase on a Butterworth crossover as this will often give a more uniform response across the crossover point. It is worth trying both normal phase and reverse phase to see which works best in your system.