Boffin FX Vibratron vs Ernie Ball PO6188 Expression Tremolo

The Boffin FX Vibratron and the Ernie Ball PO6188 Expression Tremolo are both pedals sharing modulated, spring, dynamic. The Boffin FX Vibratron leans transparent. Current prices: $65 vs $199.99.

Similarity
citedBlended 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.

40% — somewhat different

Shared genres
citedGenres both listings are associated with.
  • Indie
Shared tone character
citedDerived from overlapping tonal signals across both listings.
  • modulated
  • spring
  • dynamic
Citation fame
citedCitation/mention fame — how often this gear is cited across artist rigs and gear discussion.
0%
0%
Price

$65via Reverb

$199.99via Reverb

Description

The Boffin FX Vibratron is an analog vibrato and tremolo pedal offering a range of pulsing and pitch-modulating effects from slow, violin-like warble to fast rhythmic tremolo chop. Controls include Rate for speed and Depth for intensity. Features true bypass and a red LED indicator for effect-on status. Powered by a standard 9V DC, 2.1mm center-negative supply. Suited to vintage rock, surf, country, and atmospheric indie styles where organic modulation is preferred.

The Ernie Ball PO6188 Expression Tremolo is a tremolo pedal from Ernie Ball's effects lineup, delivering classic amplitude-modulation tremolo effects with expression-pedal-style control for real-time adjustment during performance. It offers the pulsing, rhythmic volume modulation that defines tremolo, built with Ernie Ball's reputation for road-ready, reliable hardware.

Genres
citedGenres this gear is documented as being used in.
  • Rock
  • Country
—
Tonal lean
  • transparent
—

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