Electro-Harmonix Pulsar Variable Speed Tremolo vs Ernie Ball PO6188 Expression Tremolo
The Electro-Harmonix Pulsar Variable Speed Tremolo and the Ernie Ball PO6188 Expression Tremolo are both pedals sharing spring. The Electro-Harmonix Pulsar Variable Speed Tremolo leans smooth. The Ernie Ball PO6188 Expression Tremolo leans modulated and 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.45% — somewhat different
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Derived from overlapping tonal signals across both listings.- spring
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$199.99via Reverb
The Electro-Harmonix Pulsar is a variable-speed tremolo pedal from Electro-Harmonix, delivering optical-style amplitude modulation tremolo with Rate, Depth, and Shape controls. The Shape control selects between different tremolo waveforms from smooth sine wave to sharp square wave chopping. The Pulsar provides studio-quality tremolo with a wide Rate range from gentle slow pulse through fast, machine-gun tremolo chop.
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.
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Genres this gear is documented as being used in.- Classic Rock
- Country
- Indie
- smooth
- modulated
- dynamic