vimsynth/modules/ring
modules/processors/RING
Four-quadrant multiplier: x × y, signed. Ring modulation and amplitude modulation. Bell-like, metallic, inharmonic — this is not a variant of the VCA, it is the other half of a pair.

RING to get this card.Down the left edge of the card, top to bottom.
y passes x through untouched.Down the right edge, in the same order.
The full reference — every parameter curve, the patching notes and the worked examples — lives in the manual: docs.vimsynth.com/modules/ring. In the app itself, :help RING opens the same page without leaving the rack.