Sleep Token’s enigmatic guitarist IV drives the band’s extremes, shifting from crushing drop-tuned rhythm work to fluid, genre-crossing phrasing without losing a single ounce of definition. Jackson’s Pro Plus Series Signature Sleep Token IV Monarkh SC translates one of IV’s most iconic custom instruments into a production model. Its 30-inch baritone scale keeps heavily down-tuned riffs tight and articulate across 24 jumbo frets, while its EverTune F6 bridge locks the tuning in place no matter how hard you dig in. Additionally, a mahogany body with a maple cap supplies warmth and sustain, paired with a 3-piece caramelized maple set neck and a pale moon ebony fingerboard, which delivers a bright, fast-responding attack that keeps low tunings from blurring. Powering it all, a pair of active Fishman Fluence Open Core humbuckers covers everything from vintage warmth to high-output aggression, with two distinct voices accessible via a single push-pull Volume knob. Wrapped in a Transparent Black Burst finish, the Monarkh SC carries the same deliberate darkness that defines Sleep Token’s sound.

Jackson Pro Plus Series Signature Sleep Token IV Monarkh SC at a Glance:

• Mahogany body
• Maple cap with quilt maple veneer
• Three-piece caramelized maple set-neck construction and graphite reinforcement
• 30" scale length
• Fishman® Fluence® Open Core® Classic humbucking pickups
• Single volume (push/pull voice activation)
• 3-way toggle switch
• 12"-16" compound radius pale moon ebony fingerboard with pearloid teardrop inlays
• 22 jumbo stainless steel frets
• Jackson® (3+3) Sweetone headstock
• Evertune® F6 bridge with custom tension saddles
• Full octave down tuning
• Gig bag included

The masked architect behind the design

Few modern metal guitarists cover as much ground as IV. As Sleep Token’s guitarist, he moves between ultra-tight, down-tuned riffing, shimmering cleans, and wide ambient textures, often within a single song, and he has done it entirely behind a mask, known only by a Roman numeral. His specifications drive this Monarkh SC, starting with a 30-inch baritone scale built on a mahogany body with a quilt maple cap that delivers warmth and sustain while extending the platform to keep even the lowest tunings tight and articulate. An EverTune F6 bridge mechanically locks that tension in place, holding each string at pitch through hard picking, hot stages, and humidity swings. Even the finish follows the band’s logic, wrapped in Transparent Black Burst and framed by crisp 3-ply binding, offset by the pale moon ebony fretboard. Striking the perfect balance between subtlety and intensity, it’s a signature guitar that lets the sound do the announcing, just as Sleep Token always has.

Dark looks, dialed-in playability

Beneath the Pro Plus Series Signature Sleep Token IV Monarkh SC’s signature specs sits a serious performance platform. The 3-piece caramelized maple neck is capped in pale moon ebony, a fingerboard dense and rigid enough to sharpen every note’s attack and carrying a show-stopping aesthetic with inky streaks that cut across pale, creamy wood in a pattern no two boards share. The neck’s playability is further enhanced by Jackson’s 12–16-inch compound radius, which rounds at the nut for comfortable chording and flattens toward the heel for clean bends across 24 jumbo frets. This is all supported by a graphite-reinforced dual-action truss rod with a heel-mounted wheel that keeps setup adjustments simple and resists warping from temperature and humidity fluctuations on the road.

Multiple voices, one guitar

Sleep Token songs swing between whispered restraint and total weight, and IV’s guitar has to handle both. Two Fishman Fluence Open Core humbuckers make that possible, built on Fishman’s Fluence Core technology, which packs multiple distinct voices into a single pickup rather than committing to a single voice. At the bridge, that means vintage PAF warmth and character in the first voice, then hot-rodded, high-output aggression in the second. The neck pickup pairs PAF-style depth and warmth with a Fluence original built on exceptional highs, a vocal midrange, and a firm low end. Music Experience’s metal guitarists reach for the Fluence Open Core set when a rig has to stay dead quiet under heavy gain, since the design sidesteps the inductance problems of traditional wire-wound pickups. A single push-pull Volume knob handles the switching, giving IV — and you — enough range to cover a whole Sleep Token set from one guitar.

What Jackson Says...

In the shadowed realm where crushing heaviness meets ethereal beauty, Sleep Token's IV has forged a sonic identity that defies convention, seamlessly weaving fragile ambient textures with earth-shattering riffs that have redefined modern metal—and now, that transformative power is captured in the Jackson IV Signature Monarkh. Built for IV's signature whole-octave-down tuning, the Monarkh features a commanding 30" scale length and precision-engineered Evertune 6 bridge with custom saddles that deliver unprecedented clarity and tuning stability in the lowest registers. The bound mahogany body with striking quilt maple veneer and 3-piece caramelized maple set-neck construction creates the perfect foundation for IV's expansive tonal palette, while the compound radius pale moon ebony fingerboard with 22 stainless steel frets provides effortless playability from crushing low-end riffs to devastating chord progressions. Direct-mount Fishman Fluence Open Core Classic humbuckers capture every nuance—from crystalline clean tones that pierce the darkness to saturated leads that cut through the heaviest mix, translating pure emotion into sonic impact with exceptional clarity in the extended low range. Complete with pearloid teardrop inlays, Luminlay side dots, matching headstock, and foam core case, the Monarkh doesn't just play music—it channels raw human emotion and amplifies it to seismic levels, giving you the key to unlocking your own devastating tonal identity.

Set-Neck Three-Piece Caramelized Maple Neck Construction

The 3-piece laminated construction provides superior structural integrity compared to single-piece necks.

Evertune Bridge

Maintains precise intonation and tuning regardless of temperature changes, humidity, or playing intensity.

Stainless Steel Frets

Resist divots, grooves, and wear patterns even under heavy playing and string bending.