-- card: 33608 from stack: in -- bmap block id: 0 -- flags: 0000 -- background id: 3551 -- name: -- part contents for background part 3 ----- text ----- ring modulator -- part contents for background part 4 ----- text ----- a specialized amplitude modulator that produces an output that contains only the sum and difference frequencies of its input waveforms' partials - generally used to create metallic, non-harmonic, timbres.