DJ Pinky

In this extensive interview by YouTuber Shane Flemming from roughly 2019, DJ Rod talks about the early days of Memphis production. At the roughly 4:40 mark he mentions DJ Pinky's use of the DR-660:

It was me, KE, and DJ Pinky... we were like the main spearheads of production over at [Fela's] house. It was either I'm doin' the beats, KE was doin' the beats or Pinky was doing the beats... AND Fela. All four of us were the ones that used that Roland 660 [...] when we'd use that thing we'd take turns making beats...

Note: There is no "Roland" 660, but Boss is just a subsidiary of Roland, so calling the Boss 660 the "Roland" 660 isn't exactly incorrect.

DJ Pinky is also listed as a Boss DR-660 user in the excellent 90s Memphis Rap Production Guide from Loaded Samples.

Also also: Enjoy this very NSFW early 90s DJ Pinky track that may or may not feature some 660 sounds.

Also also also: I have no idea who the artist "KE" is (or "Keith One/Warren"?) that they keep mentioning in the interview, if anyone has any ideas on that one, go ahead and @me right there in the posting comments.