Build This! Passive Crossovers
Here are some simple crossovers you can build for use with two-way and three-way closed box and reflex cabinets.
June 17, 2014
Unless you have experience putting together printed circuit boards,we'd recommend using a pre-drilled printed circuit board (such as Veroboard). It's worth gluing the components down if the cabinet is likely to be transported frequently.
Follow the circuit diagrams carefully, and text by connecting up to the drivers and running the system at very low levels. Also check that the drivers are all connected in the correct phase.
The attached PDF document (see below) contains the crossover diagrams and all the information you need on on component values and power handling.