Rotosound RKH1 The King Henry Phaser vs Warm Audio Mutation Phasor II
The Rotosound RKH1 The King Henry Phaser and the Warm Audio Mutation Phasor II are both pedals sharing modulated. The Warm Audio Mutation Phasor II leans dynamic.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.46% — somewhat different
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Genres both listings are associated with.- Funk
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Derived from overlapping tonal signals across both listings.- modulated
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$139.99via Reverb
Rotosound, a British brand best known for decades as a leading manufacturer of guitar and bass strings, extended into effects pedals with releases like the RKH1 The King Henry Phaser, bringing the company's established manufacturing reputation into a new product category. As a phaser, it sweeps a series of notch filters across the frequency spectrum to create the classic swirling, watery modulation associated with the format, distinct from the flanger or chorus effects found elsewhere in modulation pedal catalogs. The playful King Henry naming reflects a British boutique-pedal sensibility, layering personality onto a well-understood, classic effect type.
The Warm Audio Mutation Phasor II reproduces the Musitronics Mu-Tron Phasor II, a legendary 1970s phaser circuit prized by collectors and funk, psychedelic, and progressive rock players for a deeper, more envelope-responsive sweep than most conventional phasers offer. Mu-Tron's original units have become rare and expensive vintage collector pieces, making faithful clones like Warm Audio's an important way for modern players to access that specific, historically significant sweep character without hunting down and paying vintage prices for an aging original. Warm Audio built its reputation on accessible, accurate recreations of iconic vintage studio and effects hardware, and this phaser continues that mission within the modulation effects category specifically.
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Genres this gear is documented as being used in.- Progressive Rock
- Electronic
- dynamic