In this Rig Rundown by Premier Guitar, CAE 3+ SE can be seen at 9:20 in Billie's rack.

used live during black album tour

Dave Mustaine and Marty Friedman used the CAE 3+ SE preamp for the "Countdown To Extinction" and "Youthanasia" studio albums and corresponding tours.

In the video "Blink-182 Rig Rundown" by Premier Guitar, at the 19:44 mark, Justin Sweet, the technician for Thomas DeLonge, confirms the use of the Custom Audio Electronics CAE 3+ SE amplifier in DeLonge's setup.

Taken directly from Marty's wikipedia page, his listed gear:

Amps and effects Engl Signature Marty Friedman Inferno (current) Fractal Audio Axe-FX II processor (current) Engl Special Edition (former) Engl Powerball (2011 tour) Custom Audio Electronics CAE 3+ preamp (Countdown, Youthanasia albums and tours) (former) Soldano SLO-100 (custom rackmount with slave out and effects loop circa 1992, used in studio for both guitar and bass tracks) Bogner Triple Giant #11/25 (Rust in Peace album and tour) (former) Rocktron/Bradshaw RSB 11 controller Crate Blue Voodoo (as power amp, former) VHT 2150 power amp (former) Maxon AF-9 Auto Wah[30]

Lukather (July 2002) "I went back to where I was with my gear circa 1990-91, but with subtle improvements. BRADSHAW baby! That pre-amp for me is better than the Rivera and was the sonic blue print for the Bonehead. I hadn't played thru my CAE-3+ in 5 years and when I plugged my Bradshaw in, it blew my mind. I then broke out my VHT power amps... and yes again... warmth, tone... I rest my case. I still have my PCM 70's... vintage now and some cool Line 6 stuff. Very small and compact and it sounds better than ever! I used this rig on my new Xmas record coming fall 2003. As for the new Toto record I used a stock 1/12 Marshall combo plugged direct and all EFX used are from the console. I did this for 2 reasons. One is to dispell the myth that my GEAR plays for me and not the other way around. Second I wanted to see just how many DIFFERENT sounds I could get with this simple amp and my most loved MusicMan guitars which are also stock. When you listen you be the judge."

Lukather (April 2002): "I use a Roland keyboard volume pedal but it's pretty much whatever you like that feels good. The pedal is early in the chain so that when you fade out the delays keep going and you're not fading out your entire sound. You guys gotta understand, I am NOT a tech kinda guy. Bob Bradshaw designs all my stuff. He has since 1984. I am putting together a brand new rig as I write this. I tell him what I want and he does all the brain work to make it happen and he pretty much knows what I want." Amplifiers: the VHT classic power amp for the dry clean through the mid channel and the VHT stereo effects amp for the stereo effects through the left and right channels. Pre-amp: Custom Audio Electronics 3+ (CAE 3+, Bob Bradshaw) with three sound switches: clean, dirty and very dirty.

In this video, Sergey Golovin was seen using a CAE 3+ SE preamp in his rack.

In the YouTube video titled "EU VOU MOSTRAR PRA VOCÊS meu Set Up - Kiko Roupa Nova," Kiko Pereira showcases his use of the Custom Audio Electronics CAE 3+ SE guitar preamp.

In the video titled "Dapoer Gear (Eps 2) - Lukman NOAH" by DAPOER GEAR on YouTube, Loekman Hakim is shown using the Custom Audio Electronics CAE 3+ SE guitar preamp.