Krozz Devices RoyalBreaker

The RoyalBreaker is a distortion pedal from Krozz Devices, a Brazilian maker, and it was the company's first foray into dirt boxes¹. Guitar Pedal X describes it as a Rat-style Distortion/OpAmp Fuzz with fiery, explosive, searing sustaining distortion², and the design takes its cues from the White Face Rat and Turbo Rat with what that reviewer calls a Marshall-esque core³. It launched in December 2024 at $219 direct from Krozz Devices in Brazil³⁴, and it went on to take a SILVER placing in Guitar Pedal X's roundup of 2025's best new distortion pedals⁴.

Gain, clipping and EQ: the circuit

At the heart of the pedal is a TL072 op-amp, which Guitar Pedal X's Stefan Karlsson described as a superb sounding core, driving the Gain output all the way up to +68dB³. Around it sit the controls listed below⁴.

The EQ is an active Baxandall Bass and Treble design centring on the 700Hz frequency cluster, with each band targeting frequencies above and below that point³. Delicious Audio's Paolo De Gregorio notes that the two-knob EQ section allows mid-scooped tones with the Bass and Treble knobs turned up, and mid-humped tones when they are turned down¹.

The Rising control is the pedal's most unusual feature. De Gregorio explains that it adjusts the distortion's compression level, delivering either saturated tones or more open and touch-sensitive tones¹. Karlsson describes the same control as Silicon > LED variable clipping³, so it sweeps the clipping character between those two elements rather than switching between fixed settings.

The two voices: UP and Tight

A toggle switch selects between the pedal's two voices¹. According to Guitar Pedal X, UP delivers full-on sizzle, while Tight removes it while retaining rich texture². De Gregorio frames the same switch in practical terms: the two voices deliver a more aggressive distortion for lead parts, or a drier and more focused sound for defined yet punchy rhythm parts¹.

What reviewers said

Guitar Pedal X has reviewed the RoyalBreaker twice, and both reviews are strongly positive. In his 2025 review, Karlsson called it possibly his favorite core-sounding Rat Distortion to date². In his year-end roundup, he wrote:

That roundup placed the RoyalBreaker among three SILVER awards, alongside the Blue Colander Grimrobe and the Fortin Meshuggah⁴.

Availability

The RoyalBreaker is available for orders on the Krozz Devices webstore³. Guitar Pedal X lists it at $219 direct from the maker in Brazil, and notes that at FX Pedal Planet in the UK it retails for the equivalent of £219².

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