JOYO Bass Compressor Guitar Pedal, Optical Circuit with Attack /Release /Ratio /Tone Control & Bypass (SCYLLA R-27)

Features

• OPTICAL COMPRESSOR CIRCUIT STUDIO-GRADE TRANSPARENCY: The SCYLLA features a genuine optical compressor circuit using a light-dependent resistor (LDR) for smooth, musical compression that evens out dynamics without squashing your tone. Optical compression is prized in professional studios for its transparent, high-headroom responsecontrolling peaks and adding sustain while preserving your bass's natural character. Players describe the tone as "shockingly quiet"a low-noise CMOS design that outperforms many compressors.
• 6-KNOB PRECISION CONTROL ATTACK, RELEASE, RATIO, TONE, INPUT & OUTPUT: Sculpt your perfect compression with six dedicated controls. ATTACK adjusts how quickly compression engagesfast for smoothing aggressive pick attack, slow to preserve punchy transients. RELEASE controls how long compression holdsshort for tight, percussive playing, long for smooth sustain. RATIO sets compression intensity from subtle 2:1 to heavy limiting. TONE adds unique timbral flexibilitybrighten for presence, or darken for a warmer thump. INPUT and OUTPUT provide precise gain staging for any bass, from passive single coils to active humbuckers.
• BUILT FOR BASS BUT VERSATILE FOR ALL INSTRUMENTS: While optimized for bass guitar, the SCYLLA's transparent optical circuit makes it equally capable with electric guitar, acoustic instruments, and even keyboards. Use it to tighten slap bass dynamics, smooth out fingerstyle passages, add sustain to clean leads, or control volume peaks in any signal chain. The subtle, musical compression won't color your core toneit simply makes everything sound more polished and professional.
• ROAD-READY R SERIES DESIGN: True bypass switchingconfirmed by relay designpreserves your instrument's natural tone when the pedal is disengaged. Encased in a rugged aluminum alloy, the SCYLLA features the iconic R Series ambient LED lighting with 3 modes (Sync, Always On, or Off) via a recessed switch on the underside. The smooth, responsive chrome knobs and sturdy footswitch are built to withstand heavy stomping night after night. A subtle gain reduction indicator LED shows compression activity in real time.
• JOYO QUALITY & AFTER-SALES CONFIDENCE: Backed by JOYO's decade-plus reputation for crafting innovative, budget-friendly gear. The SCYLLA is part of the R Series, built with upgraded precision components. Important: Powered by 9V DC adapter only (center negative, not included). Rated current: 100mA. Battery operation is not supported. For the quietest performanceespecially with high-headroom optical circuitsuse a regulated, isolated 9V power supply and avoid daisy-chaining with other pedals. Should any issues arise, please contact us through your Amazon order page.