Maestro Ring Modulator RM-1

The RM-1 was an early ring modulator effect built by Maestro. Like many vintage effects, condition is a major factor for resale value. Additionally, there is some variation with this effect as to whether it comes with an MP-1 control pedal. Those with the MP-1 intact are worth more. 

Years of Production: 
1971 - 1975

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