In the video in which Moonlight Matters is taking Future Music Magazine on a tour of his studio, at 1:02:44 he says "Next up here is the OB-Xa".

Video of Firechild performing on the OB-Xa in his studio.

Michael Beinhorn used the Oberheim OB-Xa synthesizer on Material's One Down, as evidenced by an image on Equipboard.

Simon Brenner can be seen using the Oberheim OB-Xa at 0:15 into the video of this performance in Top of The Pops in 1982.

Paul Taylor is confirmed to use an Oberheim OB-Xa synthesizer during his time with Alice Cooper, as evidenced by a photo available on Equipboard.

The screencap from Tommy Tallarico's studio in the 1990s at Virgin Games, sourced from the Virgin Press Kit's Tech Talk section.

In a Facebook post, John Massari is shown using the Oberheim OB-Xa synthesizer.

In this scan of the concert programme for Sky's Australian Tour of 1984, the listing for Steve Gray's onstage keyboard includes an Oberheim OBX-A polyphonic synthesiser. Also used onstage during previous touring with Sky.

From the "Fact File" on Steve Gray, Electronic Music Maker magazine May 1982 (http://www.muzines.co.uk/articles/fact-file/4289) Keyboards with Sky: Roland JP8; Oberheim OBXa; Oberheim OB1; Hohner Clavinet; William De Blaise harpsichord;

From "Electronics & Music Maker" February 1984, page 16:

Paul Wiffen: What are you using at the moment?

Mark Stanway: Well I swear by the Oberheim (OB-Xa, the one with 120 memories). It holds its tuningso well and it's never let me down. When I was in Sweden last month, I used the new OB-8 (reviewed in this issue) and it's got a few developments which are really good so I wouldn't mind moving up to that one. I think they ought to give me one really, but I suppose I'll have to fork out.

Paul Wiffen: What is your set up?

Mark Stanway: Well from the left round I've got Mellotron - still. It's a dear old instrument. I only use it on one track in the current (Magnum) set, just for the male voices which I can't get from anything else.

On top of that I've got the Korg organ, the BX-3. You see, I don't play enough organ in the show to warrant lugging a Hammond B3 about, and this is the nearest I can get to ne. It's a great thing, so compact but with a really full sound.

On top of that I have a Roland string machine, one of the old ones, the RS -202. I still use it in the studio, on the most recent Magnum for example (the Eleventh Hour - reviewed in E&MM Aug 83) and I'll continue to use it, 'cos it's got a great sound. I get a very thin sharp tone out of it, and using volume pedals and studio tricks on it, I can get it direct on one channel, with the delay panned to the other side.

Authored by Paul Wiffen.

Howard Goodall has confirmed his use of the Oberheim OB-Xa synthesizer, stating, "Ah - the synth strings on those intros were definitely a patch I made on my OB-Xa, I can at least confirm that." This information is sourced from his post on Bluesky Social.

Roger Limb uses the Oberheim OB-Xa, as he mentioned, ""Oberheim OBXa and an Elka Synthex. For a long time I used the Oberheim alone and we've only recently got the Synthex — they only overlap very slightly and there are still a lot of very useful sounds I can get on the Oberheim." This statement is supported by the document titled "1984 The Sound House."

Oberheim OB-Xa in video