Can You Identify This Mystery Synth Bass?

[nidaye]

I hear this snappy and fat synth bass sound used frequently in R&B and Pop Jazz productions between 1987 and 1990. But the exact machine it came from has remained a mystery.

So far the closest thing I have found is the Roland JX/Alpha-Juno/MKS family. But their synth bass sounds lack the mystery synth's "body" (for lack of a better description), which resembles the vibrating string sound from a real electric or acoustic bass.

I'm not betting on the usual suspect, Minimoog, since we can hear velocity-sensitive filter cutoff variation in the samples below. Minis are only capable of that after modification, and the high similarity among these samples suggests that it's likely a synth preset, a concept that doesn't apply to Minis.

The snippets below are from 3 different songs that all featured this synth bass sound. Can you identify the synth it came from?

Thanks a bunch!

[alienmachine]

For me, the snippets sound FM. They could be from any of the DXs or TXs. The Casio CZs also can produce those kind of sounds.
https://www.youtube.com/watch?v=Z0Dt5TJQBG4
https://www.youtube.com/watch?v=ujW9moSXl3g

[Uncle E]

Agreed. Sounds like FM to me, too. Most likely DX7, based on the era.