"I think it was on the Tunnel of Love tour that I had all of these foot pedals with chorus and delays running together, and they got so noisy! So I challenged myself to learn how to use a rack-mounted thing. That's how I acquired those [Roland] GP-8s, which are programmed for the E Street Band and my solo work."

Rick uses a Roland GP8 signal processor, which has three different chorus/flange settings and three overdrive settings.

For effects, Francis uses a Roland GP8 which boosts the signal to the amplifier, has five different overdrive patches and one patch which is a very tight straight double effect with some echo.

"Because Burchill is known for his atmospheric tones, it is no surprise that he has experimented with and used several different gear setups throughout his career. The early ‘80s sound came through a Roland 501 Echo unit into a Roland JC120 amp. During the second half of the ‘80s, Burchill switched to Marshall JCM 900 amps, and used a variety of effects including and Eventide Harmonizer, TC Electronic 2290 delay, Roland GP-8, Yamaha Rev 7, and a Kurzweil 250 rack-mount sound module. Burchill used a ‘62 Gretsch White Falcon and a Fender Strat in the studio, and a custom thin-line Telecaster (notably on “Don’t You, Forget About Me”)."

In an interview for Guitar & Bass magazine vol. 16 from December 2005, Wayne Hussey declares :

"Around that time I got a Roland GP8 rack, which was basically eight Boss pedals that you could program. l've tried many things over the years,but I always go back to that for live music."

Early on I saw him at lolapalooza playing thru a roland gp-8, crown power amp and some 4X12 cabs(sounded great).

Kee's multi-effects rack included a Roland GP-8 on Europe's "Out Of This World" Tour. You can see his guitar tech point at the unit at 13:09 in the Milan soundcheck video.

Henrik Danhage showcases his Roland GP-8 effects processor in a video mentioned on his Instagram, highlighting its use alongside other Roland effects.

Sonny T used a Roland GP-8 with Prince in the early 1990s.

In a 2010 Twitter post, he said: “I used the ROLAND GP-8 for the first time in a while. I think long-time fans remember it, During the recording of his first solo album “GUITARHYTHM” after BOΦWY disbanded. I chose this GP-8 when I wanted to break away from the sound of my band days and pursue a more direct and sharp sound. The guitar sound for ``GUITARHYTHM'' was created using only the GP-8, without using any amplifiers. No matter what you say, the unique sound of the built-in effector is attractive. In particular, the clean arpeggio sound created by combining a compressor, EQ, and chorus is full of memories. The chorus of Glorious Days, the intro of STRANGE VOICE, etc. Fukutomi immediately looked for it on an online auction and found that he could buy it at a very reasonable price. Recent multi-effectors seem to be great, but this "GP-8". This is a masterpiece that I highly recommend to guitarists who are guitar rhythm fans. You can also reproduce C'MON, Materials, and WAITING FOR YOU. ”

In an interview with Guitar Gear, Paco Huidobro confirms the use of the Roland GP-8 during the 1990s.

I use various Gibson, PRS, and U.S. Masters guitars through two Kustom ''72 Coupe heads and a Kustom 4x12 cabinet. My processing is an old** Roland GP-8**, DigiTech harmonizer and a Boss SX-700 multi-effects. On the floor I have a Roland FC-100 controller, EV-5 expression pedal, Boss tremolo, Dunlop wah, Boss TU-12 tuner and an Ernie Ball volume pedal to bring in and out the harmonizer. When I play acoustic I use Taylors.