Eric Peterson

Eric can be seen using a black ESP Horizon with the jackson "lawsuit" headstock in the trial by fire music video.

Eric Peterson's number one guitar is his signature Dean Old Skull V, according to this Premier Guitar rig rundown.

"Peterson also plays a Dean Z with an EMG 57/66 pickup set. He strings both Deans with .010–.052 D’Addario NY XL sets, and tunes down to Eb," reads this Premier Guitar rig rundown.

Used in a guitar solo in Minneapolis, MN 05/03/2017, probably modified with a Floyd Rose bridge on it

It was a Memphis Les Paul copy with a bolt-on neck. It had a cherry burst and looked like an Ace Frehley guitar. It was really cool. I bought it at some music stores in a suburban area, where they carried mostly violins and banjos and had maybe two electric guitars. I took lessons there with a guy who was a real jazz-oriented guitar player. He was about 60 or 70 years old, and he taught me some cool stuff.

Dean Soul Z Signature with EMG 81/85

Eric can be seen playing a black gibson les paul with no pickguard in the video for practice what you preach

I used other guitars besides Dean. I used a Marc Bolan Les Paul with PAF pickups in it and a Joe Bonamassa Signature with [EMG] 57 or 58 humbuckers. I also used my old skull Signature Dean and I used a Fender Strat for soloing. I also used a [Harmony] Bobcat Holiday guitar from 1964 that’s crazy. I found it at Guitar Center. I plugged it into a Mesa Boogie or some version of a Roland Jazz Chorus amp and it was really clean and it was like, “Oh, my god.” I used that on “Love Of the Damned.” I also used a Gibson Hummingbird.

I used other guitars besides Dean. I used a Marc Bolan Les Paul with PAF pickups in it and a Joe Bonamassa Signature with [EMG] 57 or 58 humbuckers. I also used my old skull Signature Dean and I used a Fender Strat for soloing. I also used a [Harmony] Bobcat Holiday guitar from 1964 that’s crazy. I found it at Guitar Center. I plugged it into a Mesa Boogie or some version of a Roland Jazz Chorus amp and it was really clean and it was like, “Oh, my god.” I used that on “Love Of the Damned.” I also used a Gibson Hummingbird.

I used other guitars besides Dean. I used a Marc Bolan Les Paul with PAF pickups in it and a Joe Bonamassa Signature with [EMG] 57 or 58 humbuckers. I also used my old skull Signature Dean and I used a Fender Strat for soloing. I also used a [Harmony] Bobcat Holiday guitar from 1964 that’s crazy. I found it at Guitar Center. I plugged it into a Mesa Boogie or some version of a Roland Jazz Chorus amp and it was really clean and it was like, “Oh, my god.” I used that on “Love Of the Damned.” I also used a Gibson Hummingbird.

I used other guitars besides Dean. I used a Marc Bolan Les Paul with PAF pickups in it and a Joe Bonamassa Signature with [EMG] 57 or 58 humbuckers. I also used my old skull Signature Dean and I used a Fender Strat for soloing. I also used a [Harmony] Bobcat Holiday guitar from 1964 that’s crazy. I found it at Guitar Center. I plugged it into a Mesa Boogie or some version of a Roland Jazz Chorus amp and it was really clean and it was like, “Oh, my god.” I used that on “Love Of the Damned.” I also used a Gibson Hummingbird.

In the video titled "Riff Lords: Eric Peterson of Testament," produced by Gibson TV, Eric Peterson is seen playing a Gibson Explorer Pro while demonstrating riffs on this guitar.