Classic Compression, Smooth Sustain Countless guitarists trust the CS-3 Compression Sustainer for its smooth sound and outstanding versatility. From subtle dynamics control to rich, clean sustain, this blue BOSS classic provides exceptional balance and articulation, whether playing rhythm or lead. Level, Tone, Attack, and Sustain knobs offer precise, intuitive operation and the ability to shape your sound for any musical style. In continuous production since 1986, the CS-3 is a go-to staple for players seeking natural-sounding compression. Features Classic analog compressor pedal favored by guitarists for decades Provides natural compression and rich sustain without adding distortion Attack and Sustain knobs shape dynamics with clarity and smoothness Tone knob for adjusting the high-frequency response High-performance VCA circuit delivers stable, balanced sound Low-noise design for transparent operation BOSS five-year warranty Highlights Fluid OperationCompression evens out volume by reducing loud signals while boosting soft ones, and the CS-3’s Attack knob determines how quickly the circuit reacts. Turning it clockwise preserves string attack for a snappier, more percussive sound, while counterclockwise settings provide progressive control over signal spikes. Twisting the Sustain knob increases the amount of compression, allowing you to tighten the sound and produce natural sustain without distortion. Precision Dynamics ControlThe CS-3 features a high-performance VCA circuit that delivers stable, consistent compression with very low noise. Renowned for its distinctive character and well-balanced response, the pedal maintains clarity across all playing styles. It excels at everything from hot country licks and punchy power chords to singing solos, making it an essential tone-enhancing tool. Tonal Versatility The Tone knob adds another layer of versatility by shaping the EQ of the compressed signal. Higher settings enhance the treble for a sharper, more cutting tone—perfect for chimey arpeggios, funk rhythms, and parts that need to stand out. Rolling it back softens the highs, creating a warm, mellow voice that suits genres like jazz and neo soul. Whether you need some extra bite or a smoother feel, the CS-3 helps you sculpt your sound to match the music you’re playing. Specifications 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 knob, ATTACK knob, TONE knob, LEVEL knob, Pedal switch Indicator CHECK indicator (Serves also as battery check indicator) Connectors INPUT jack: 1/4-inch phone type; OUTPUT jack: 1/4-inch phone type; DC IN jack Power Supply Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61); AC adaptor (PSA series: sold separately) Current Draw 20 mA Expected battery life under continuous use Carbon: Approx. 10.5 hours; Alkaline: Approx. 26 hours; *These figures will vary depending on the actual conditions of use. Accessories Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information"); Dry battery/9 V type (6F22) Options (sold separately) AC adaptor: PSA series Size & Weight Width 73 mm (2-7/8 inches) Depth 129 mm (5-1/8 inches) Height 59 mm (2-3/8 inches) Weight 380 g (14 oz)
