Dunlop MXR SUB Machine vs Fairfield Circuitry The Unpleasant Surprise
The Dunlop MXR SUB Machine and the Fairfield Circuitry The Unpleasant Surprise are both pedals sharing fuzzy, octave, full. The Fairfield Circuitry The Unpleasant Surprise leans analog warmth and sustaining. Current prices: $199.99 vs $219.
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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.44% — somewhat different
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Genres both listings are associated with.- Experimental
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Derived from overlapping tonal signals across both listings.- fuzzy
- octave
- full
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$199.99via Reverb
$219via Reverb
The MXR Sub Machine is a two-channel fuzz and sub-octave pedal from MXR by Jim Dunlop, combining an upper-gain fuzz channel with a sub-octave generator that drops the guitar signal one octave below pitch. The pedal features independent controls for fuzz and sub-octave level alongside a dry signal blend, allowing players to mix the three signal elements in any proportion. The Sub Machine produces dense, synth-like fuzz tones with the sub-octave adding a deep, full-frequency foundation below the fuzz. It is suited to players who want the textural complexity of a fuzz and a sub-bass element in a single enclosure without separate octave and fuzz pedals.
The Fairfield Circuitry Unpleasant Surprise is a gated fuzz pedal capable of octave fuzz and extreme gated textures. Controls consist of Volume, Onset (a gain and gate-threshold control), and three toggle switches: T (treble cut), G (gain character — open versus compressed), and C (Crush, which engages octave fuzz). The Onset knob controls the onset of fuzz from raunchy gated artifacts at low settings to beautiful sustained distortion at high settings. The C toggle unlocks a lower-octave harmonic character that combines with the gating for abrasive, synth-like fuzz.
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Genres this gear is documented as being used in.- Stoner Rock
- Rock
- Doom Metal
- Post-Punk
- analog warmth
- sustaining