As of August 2026, Stacked Overdrive is retired.

Boss SP-1 Spectrum · Stacked Overdrive

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SP-1 Spectrum

[ owner photo · Boss SP-1 Spectrum ]

A parametric equalizer pedal boosting one selectable frequency band.

[ owner photo · Boss SP-1 Spectrum ]

A parametric equalizer pedal boosting one selectable frequency band.

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