The Zoom 509 Dual Power Modulator pedal is a multi-effects unit for acoustic instruments that combines a variety of modulation effects, such as chorus, flanger, phaser, and tremolo, in a durable and compact unit. It features dual power options and user-friendly controls, making it ideal for both live performances and studio recordings.

Main features include:

• Two effect generators that allow more modulation effects and combinations than any other pedal in its class.
• 20 built-in effects, such as choruses, flangers, doublers, “step” effects, EQs, rotary, tremolo, auto-pan, and more.
• Dedicated 2-voice pitch shifter.
• Harmonized pitch shifter.
• Fully programmable.
• Seamless patch changes.
• 24 user-programmable patch locations.
• Built-in automatic chromatic tuner.
• New Zoom ZFX-2 processor for CD-quality sound.
• Stereo output/headphone output with master level control.