As of August 2026, Stacked Overdrive is retired.

Pearl TH-20 Thriller · Stacked Overdrive

Stacked Overdrive

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TH-20 Thriller

[ owner photo · Pearl TH-20 Thriller ]

A modulation pedal from Pearl's Sound Spice effects line, a series the company manufactured only briefly in the early 1980s.

[ owner photo · Pearl TH-20 Thriller ]

A modulation pedal from Pearl's Sound Spice effects line, a series the company manufactured only briefly in the early 1980s.

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