Neil Kernon has confirmed the use of the Yamaha SPX90 Digital Multi Effects Processor by stating, "As far as reverbs, I used an Emt 250, Emt 251, several Yamaha Rev 1s, some Rev 5s and also numerous SPX-90s. I mixed the album at Yamaha's own studio in Glendale, CA, hence the proliferation of Yamaha gear." This information is sourced from the Gearspace forum discussion related to the making of Queensryche's "Rage For Order" video.

Eric Chevalier's gear list circa 2003, according to his website:

Mixing Consoles: - Sony DMX-R100 - Yamaha 01V Monitors: - Genelec 1031.A - Genelec 1030.A

Samplers: - Akai s6000 (x2) - Akai CD3000XL - Roland S760 (x4) - Roland SP 700

Synthesizers: - Roland JD800 - Roland JD990 - Roland MKS80 + PG - Roland MKS70 + PG (x2) - Roland XV3080 - Roland D550 - Roland A80 - E-MU Proteus 2000 - Yamaha TX802 - Kurzweil MicroPiano - Korg M1R EX - Korg Wavestation AD - Korg Triton - Alesis DM5 (drum machine) - Access Virus A - Access Virus C - The theremin - Nord Lead

Computer (& Plugins): - PowerMac G4/733 - PowerBook Titanium - Monitors Plasma (x2) - Pro Tools Mix Plus (software) - Logic Audio Platinum (+ eMagic plugins) - Spectrasonics Athmosphere - Spectrasonics Stylus - Mac Five - DD 80 Go + 120 Go + 160 Go LaCie - DD 40 Go Ice - Synchro: "Time Machine" C Lab - Unitor MK2 (x3)

Effects: - Lexicon 480L - PCM80 / LPX15 - Yamaha SPX90 / D1500 (x2) - Tube Tech Compressor LCA 2B - EQ Moog - TC Electronics M5000 - TC Electronic Finalizer 96K - DAT Panasonic SV-3800 - DAT Sony PCM R500

In this photo shared by Dakota on Instagram, a Yamaha SPX90 is clearly visible in his rack set-up.

In a photo shared by Michał Wasyl on his Instagram account, it is evident that he uses two Yamaha SPX90 units in his setup.

In an interview video titled "Ben Grosse Interview and Studio Tour" by Produce Like A Pro, at the 23:20 mark, Ben Grosse confirms using the Yamaha SPX90.

"Own a part of video game history! This SPX-90 was used to rough out much of the music I wrote for early computer games, including Commander Keen, Wolfenstein, Doom, Duke Nukem and many more.

This was probably the most used reverb of its era. It has 30 preset effects, allowing an additional 60 additional effects. The effects are iconic. I also used this unit when playing live on occasion.

For full information, download the manual: bobbyprince dot com slash manuals slash SPX90.pdf (edit, copy and paste since Reverb doesn't appear to allow links in descriptions)."

In the January 1990 issue of "Keyboard Magazine," the right-side column on page 37 mentions that Alan Pasqua used a Yamaha SPX90 Digital Multi Effects Processor as part of his rig with the band Giant. The article was authored by Alan di Perna.

Value for money is clearly a touchstone for Tom:

"I try always to stick to a Policy of 'if it costs over £100, don't buy it.' You get more music for your money that way."

The studio's effect rack bears witness to the theory, for sitting alongside the ubiquitous Drawmer noise gates and Yamaha REV7 reverb, is that same company's budget-priced multi-effects unit, the SPX 90:

"If you could only have one effect, it'd have to be that — as an all-rounder, I much prefer it to the REV7, though there are some effects you can only get on that — the 7's great for really short, ambient things, like bass drum reverb."

In this interview with The Fixx, it is mentioned that they use a Yamaha SPX90.

One thing conspicuously absent from Robb's studio is a hard disk recording system. Sure he has the standard arsenal of rackmount modules, including Yamaha SPX90, Lexicon LXP-1 and just about the entire E-mu Proteus family, but he's got the hardware and not their plug-in counterparts.

As his stereo (Left-Right) delay, Marc Dorendorf uses the Yamaha SPX 90 as part of his Pete Cornish designed guitar effects rack system.