Boss CS-3 Compression Sustainer Guitar Effect Pedal - Used

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This used Boss will ship insured and inspected from Rapid City, SD. This pedal is in excellent condition with some very light scuffing on the front label above the control knobs.

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The Boss CS-3 Compression Sustainer has been a staple on pedalboards worldwide since 1986, trusted by countless guitarists for its natural compression, smooth sustain, and tonal versatility. Whether you’re playing country chicken-pickin’, funk rhythms, blues leads, or clean arpeggios, the CS-3 evens out dynamics while preserving clarity and articulation.

Four simple controls — Level, Tone, Attack, and Sustain — give you intuitive command over your sound. The Attack knob lets you shape the pedal’s response, from snappy and percussive to smooth and progressive, while the Sustain knob dials in everything from tight, controlled notes to singing sustain. With its low-noise design and high-performance VCA circuit, the CS-3 delivers consistent, reliable tone in any setting.

A true classic, the CS-3 remains one of the most widely used compressors in guitar history. Perfect for rhythm, lead, and clean tone sculpting, this reliable pedal is available right now in excellent used condition at Haggerty’s Music.

Features / Specs

• Nominal Input Level: -20 dBu
• Input Impedance: 1 M ohm
• Nominal Output Level: -20 dBu
• Output Impedance: 1 k ohm
• Recommended Load Impedance: 10 k ohms or greater
• Bypass: Buffered Bypass
• Controls: Sustain, Attack, Tone, Level, Pedal Switch
• Indicator: Check LED (also serves as battery check)
• Connectors: Input (1/4"), Output (1/4"), DC IN jack
• Power Supply: 9V battery or PSA-series AC adapter (Not Included)
• Current Draw: 20 mA
• Expected Battery Life: Carbon ~10.5 hours / Alkaline ~26 hours
• Accessories: Original Box, Instruction Manual
• Serial Number: E0S4493