"As far as desks go, at home I've got an RSD 16 into 16 which is basically ample for what I require. That's patched into a Fostex B16 tape recorder. I've got a rack full of effects which I use on stage for guitar anyway but they're useful for this set-up too. It's got the Roland SDE3000 digital delay unit, an Ibanez harmoniser, a Yamaha compressor, and a Roland Dimension D."

Hisashi Imai Rack - BUCK-TICK 2017 “THE PARADE” 30th anniversary

Crispian Mills is shown using the Roland SDE-3000 Delay in a recording list featured on this page: https://www.angelfire.com/blues2/electric_gypsy/CM/CMA.html. The list highlights the gear used for PPA sessions, confirming its role in his setup.

Henrik Danhage showcases his Roland SDE-3000 Delay in a video highlighted on his Instagram, where he discusses various Roland effects.

Tim Renwick confirmed using the Roland SDE-3000 during the 1994 tour with Pink Floyd, as stated in an interview with Bjorn on gilmourish.

"I do everything in here. The only thing I don't do is mix. Actually I've just got some Roland gear, the SDD 3000 and the SRV 2000 reverb so I might even start doing a spot of mixing here. At the moment I do it all at Sound Suite in Camden with Alvin Clark who's probably the best person in the world to work with. It's not SSL but it doesn't need to be. I mean it's very nice having SSL with gates on every channel but you can get by without them. 19 was all done here."

In this video, Sergey mentions that he used a variety of studio gear as well as guitar amplifiers for his album "Satellite:"

-Eventide H3000 -Roland SDE3000 -Synergy Friedman HBE Module -Synergy SYN-1 -Marshall Silver Jubilee -Custom Audio Amplification PT100 -Gibson Les Paul -Lexicon PCM80 -st.Rock React:IR -Mesa Boogie Mark V -Synergy Metro Plex -MXR/CAE Line Driver Booster -Marshall Plexi MkII -Universal Audio Apollo 8 -Zilla 2x12 cabinet with Celestion Vintage 30's and Creamback's -Shure SM57 -Model D Synth -Oberheim OB-Xa

From the Mad Professor interview in Tape Op magazine by Geoff Stanfield:

“What do you use now?

Well, for years – from 1984 – I used a Roland SDE-3000. I love that delay; I’ve got about six of them. People talk about the [Roland] Space Echo, but this is the deal man.

I’ll have to go get one! You bought ‘em all, probably.

Yeah. [laughs]

What do you prefer about the SDE-3000?

This one is pristine. It’s one of the cleanest delays you can find. It’s even cleaner than most modern delays. Up until a few years ago, they made some new additions. It’s one of the longest-running, longest-built delays. It’s tough. Physically it’s tough. Very nice.

And it’s stereo?

No, no. Mono. They made a stereo version, the SDE-330, but it wasn’t well-built. I’ve got two of them as well, but I don’t like them. Mono; that’s the killer.”

Chris Cross used a Roland SDE-3000 on stage with Ultravox, according to the January 1985 issue of International Musician.

This was the other main effect used on his sound

In a user-uploaded photo from Johannesschmoelling's website, Johannes Schmölling is shown using the Roland SDE-3000 Delay during a concert performance.

In a Reddit thread, user jellysgroove provided a list of the gear visible in a picture of Hiroshi Yoshimura's studio, which includes the Roland SDE-3000 Delay.