Walter Trout

Walter Trout lists the Mesa/Boogie Mark IV Amp Head on his official gear page, highlighting its role in his setup.

And I’m just playing through a Mesa Boogie Mark V with a 4×12 open-back cabinet – the kind they don’t make anymore with the black-metal grille.

I basically used my road rig, which is this mutt Stratocaster. The body was built for me by Scott Lentz. About 12 years ago, my shoulder went out because my old ’73 Strat weighs more than a Les Paul – it’s the one on the cover of all my records. And it pulled my shoulder out to where I couldn’t even control my left arm, I got a lot of physical therapy and a lot of acupuncture. The arm came back, but I had to retire the guitar. So Scott, who’s a good friend, built me a body that is incredibly light – I’ve got the lightest Strat on the face of the earth! I don’t know what wood he used. I had a couple of Strats laying around, and there was one neck that I really liked, so I put that neck on it. The pickups were made for me by my close friend, Seymour Duncan.

In the video "MIKE ZITO & WALTER TROUT ✩ JOHNNY B. GOODE ✩ RUF RECORDS" provided by Mike Zito Official on YouTube, Walter Trout is seen playing a Fender Mustang Electric Guitar from approximately the 1:00 mark.

According to his artist page on the official MESA/Boogie® website, guitarist Walter Trout uses the Mesa/Boogie Engineering 4x12 Recto Traditional Slant Cabinet.