Kristofer Steen

According to Premier Guitar, Steen uses the Mesa Boogie Mark III combo.

Before he started using ES-335, Steen played 1990's Gibson Les Paul Custom. According to Premier Guitar, most of the "Freedom" was recorded on this guitar.

According to Premier Guitar, Steen uses the 1990's Gibson Les Paul Traditional.

Steen uses the 2000's Fender Stratocaster, according to Premier Guitar interview.

According to Premier Guitar, Steen uses the Boss BD-2 Blues Driver Pedal.

His 2000's black Gibson ES-335 is his primary guitar. In Premier Guitar interview, he discusses this guitar.

On question why did Steen switch to ES-335, he answered. "I really enjoyed its sound—especially live. I recorded mainly with the Customs and other solidbody guitars, but when I feel like fighting, I’ll bust out the 335 onstage because that’s where it comes alive. It howls, screeches, barks, and gives me everything the Les Paul can and more sometimes. It has a full, thick, rich tone that is just a different flavor than the Customs.

A lot of our music has really fast, dynamic tempo shifts and tight breaks, so the Les Paul is great for recording because you can get really quiet, really fast, whereas tracking with a 335 in our style of music causes things to sound sloppy or me to miss my cues because of its feedback. But when I play the 335 live, I really feel the extra noise and howling adds to the chaotic frenzy we produce onstage during a performance."

According to Premier Guitar, Steen uses the Vox AC30 Guitar Combo amplifier.

According to Premier Guitar, Steen uses Mad Professor Royal Blue overdrive pedal.

According to Premier Guitar, Steen uses the 1950s Fender Twin, which was previously owned by Eric Clapton.

According to Premier Guitar, Steen uses the MXR Phase 90 pedal.

According to Premier Guitar, Steen uses the Dunlop 535Q Cry Baby Multi-Wah.

According to Premier Guitar, Steen uses Dunlop Tortex 1.14 mm picks.

In this article, as well as the music video for New Noise and late 1990s live performances, Kristofer is using a Gibson SG. In the Guitarworld article he mentions it has Seymour Duncan JB pickups, although it is unclear if this is the same SG.

In the music video for Rather Be Dead, both Kristofer and Jon are using Fender Telecasters.

"After testing many gear configurations, Steen discovered the simplest option was, in fact, the most versatile. “I had a Gibson SG [electric guitar] with [Seymour Duncan] JB pickups and a Fender Twin Reverb [amp] with a Boss [Turbo] Distortion pedal. That was it. You can get a lot out of just that.”"