$6.99 $20.00
It's a filter, but rather than operating in the frequency domain, it filters path behaviors out of a signal, diverting them to each of four outputs. Negative ascending, positive ascending, positive descending, and negative descending outputs can be reconstituted to form the whole signal (but there's no fun in that) or sent to different destinations and along different signal paths. And, you can use it for both audio and cv.
There are dual mono/stereo inputs (each with 4 outputs), and a set of polyphonic ins & outs too.
This device means you can filter the top of a wave differently than the bottom, that you can modulate one destination with the front of an LFO and another destination with the back of it, that you can build composite waveforms from a multitude of oscillators, and plenty more...