Frequency Crossover

The CRV-24 is a four band crossover with 24 dB/octave slope for all four bands. Crossover frequencies can be controlled manually and by attenuable CV signals.

The incoming signal INPUT is split in four bands; LP (low pass filter), MID1 (high/low pass), MID2 (high/low pass) and HP (high pass filter).

https://cwejman.net/crv-24.htm