IntamixX-LR4 is a 3-band (high / mid / low) 2-input / 6-output crossover filter for Pure Data, packaged with Camomile for use as an LV2 and VST3 plugin. It is designed for integration into DAWs, modular audio environments, live sound systems, loudspeaker management, and multiband processing chains.
This version implements cascaded 2nd-order filters from the ELSE library using lowpass~ and highpass~ objects to form a Linkwitz–Riley-style crossover network. The crossover topology provides complementary band splitting with flat summed magnitude response and improved phase coherence between adjacent bands.

LR4 Characteristics

Features
– Three-band crossover design
– 4th-order Linkwitz–Riley crossover
– Cascaded 2nd-order filtering
– 24 dB/octave slopes
– Adjustable low-mid and mid-high crossover frequencies