Ring Modulation vs Intermodulation Distortion Jun 5, 2020 1:41:32 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Hexspa on Jun 5, 2020 1:41:32 GMT Audio Expert, p. 34. I understand it to say that IMD is sum and difference and the harmonic distortion thereof mixed with the direct signal. In contrast, ring modulation in synthesizers, is the sum and difference sans any harmonic distortion and no direct signal. So, these are similar, right? Does that mean IMD sounds like ring modulation but fatter and in parallel rather than series? Thanks.