A Budget-Friendly Tool With Pro-Level Features
Disclaimer: This pedal was kindly provided by Joyo for the purpose of this review. However, this does not influence our opinion or the content of our review. We strive to provide honest, unbiased, and accurate assessments to ensure that our readers receive truthful and helpful information.
Verdict: Joyo Scylla Compressor Pedal
- Pros: Transparent compression, versatile tonal control, compact and durable design.
- Cons: Plastic knobs may feel less premium; no battery operation.
- Best for: Bassists seeking professional-grade compression on a budget.
- Price Range: Approximately $70–$80.

In the vast and often overwhelming world of effects pedals for bass guitar, compressors hold a unique place. They act as a silent hero—subtly enhancing your tone, controlling dynamics, and providing a polished, professional sound. However, finding a compressor that balances performance and affordability without cutting corners can feel like searching for a needle in a haystack.
Enter the Joyo Scylla Compressor—a pedal that punches well above its price point, offering an impressive suite of features and controls typically reserved for far more expensive units. Designed for the modern bassist who demands flexibility, tone shaping, and quality compression, the Scylla blends form, function, and affordability into one compact box. Let’s explore why this little gem has earned its place on so many pedalboards.
Build and Specs: Compact, Portable, and Efficient
The Scylla Compressor measures 109 mm x 72 mm x 48 mm and weighs just 234 grams. Its compact size makes it perfect for even the most cramped pedalboards—ideal for gigging musicians or studio setups where space is at a premium.
Despite its small footprint, the pedal feels sturdy and well-built, thanks to its solid metal casing that ensures durability on the road. Powering the unit is simple: it requires a 9V DC power supply with a low current draw of just 100 mA, making it easy to integrate into any existing pedal power system.

Understanding Compression and Controls
At its core, a compressor evens out your signal, controlling volume peaks while boosting quieter parts. This process ensures your bass remains consistent in a mix, adds sustain, and enhances your overall tone. The Joyo Scylla stands out due to its highly detailed six-knob control layout, providing professional-grade sound sculpting capabilities:
Input Gain:
The Input Gain knob controls the level of your incoming signal before it reaches the compression circuit. Increasing this setting pushes the compressor harder, resulting in a more pronounced compression effect. This is particularly useful for bassists switching between active and passive basses, as it allows you to fine-tune the signal strength entering the pedal.
Output Volume (Makeup Gain):
Compression naturally reduces the overall signal volume. The Output Volume knob compensates for this loss by boosting the level of your compressed signal. This ensures your bass remains prominent and sits well in the mix, no matter how much compression is applied.
Compression Ratio:
The Compression Ratio determines how much the signal is reduced once it crosses the compressor’s threshold. Unlike simpler pedals that provide fixed ratio presets, the Scylla offers continuous ratio control. This allows for everything from gentle leveling at lower settings (e.g., 2:1) to heavy limiting for slap bass or aggressive playing styles (e.g., 10:1 or more).
- Low Ratios: Subtle compression that smooths out dynamics without altering tone.
- Higher Ratios: Tight and punchy compression, ideal for players needing controlled peaks and consistent volume.
Attack:
Attack determines how quickly the compressor reacts to your playing after a note is struck. A faster attack clamps down immediately, providing a tight, punchy sound—perfect for slap bass and fast, percussive playing. A slower attack allows the initial transients to pass through untouched, giving a more natural and dynamic feel.
Release:
Release controls how quickly the compression effect stops after the signal drops below the threshold. Faster settings allow the compressor to reset quickly, which suits fast-playing styles, while slower settings produce a more natural sustain that’s perfect for long, legato notes.
Output Tone Control:
The Output Tone knob is a unique addition rarely seen in budget compressors. It adjusts the EQ coloration of the compressed signal, allowing you to dial in a touch of brightness or warmth. This feature is especially valuable for bassists who want to tweak their tone after compression without relying on an external EQ pedal.
Performance: Transparent Compression That Enhances Your Playing
On the performance front, the Joyo Scylla excels by delivering transparent, musical compression that enhances your playing without squashing your tone. Whether smoothing dynamics for fingerstyle, adding sustain for ballads, or tightening peaks for slap and pick playing, the Scylla handles it all effortlessly.
- Fingerstyle Playing: Subtle compression settings help even out dynamics, ensuring consistent volume across strings.
- Slap Bass: Fast attack and high compression ratios rein in harsh transients while maintaining punch.
- Pick Playing: Compression ensures a tight, aggressive tone with controlled peaks.
- Sustained Notes: Longer release settings allow notes to sustain beautifully, perfect for ambient or melodic bass lines.
The Scylla also impresses with its low noise floor, meaning it won’t introduce unwanted hiss or hum into your signal chain—an essential quality for bassists relying on clean, articulate tones.
Pros and Cons: A Quick Look
Pros:
- Comprehensive Controls: Six knobs provide fine-tuned control over compression settings.
- Compact Design: Pedalboard-friendly size without sacrificing features.
- Tone Knob: A rare and valuable feature for EQ shaping after compression.
- Affordable Price: Delivers professional features and sound at a budget-friendly cost.
- Durable Build: Metal casing ensures longevity for stage or studio use.
Cons:
- Lack of Visual Metering: No LED meter to monitor compression levels—relying on your ears is necessary.
- Plastic Knobs: While functional, they may not feel as premium as some high-end pedals.
FAQs
Q: Does the Joyo Scylla work with both active and passive basses?
A: Yes, the Input Gain knob allows you to adjust the signal level, accommodating both active and passive pickups.
Q: Can I use this pedal for slap bass techniques?
A: Absolutely. The fast attack setting provides tight, punchy compression ideal for slap bass.
Q: Is the Joyo Scylla suitable for live performances?
A: Yes, its compact size and durable metal casing make it a reliable choice for gigging musicians.
Conclusion: A Compressor That Outperforms Its Price
The Joyo Scylla Compressor is a testament to how far budget pedals have come. Offering a detailed control set, transparent compression, and thoughtful features like the tone control, the Scylla allows bassists to craft their sound with precision and confidence.
While it may lack some bells and whistles, such as visual metering, its overall performance and versatility more than make up for these minor omissions. For bassists looking to add smooth, controlled dynamics and a touch of tone shaping to their setup without breaking the bank, the Scylla Compressor is an absolute standout.
From its compact size to its ability to handle a wide range of playing styles, the Joyo Scylla proves that high-quality compression doesn’t need a premium price tag. Whether you’re a gigging professional or an aspiring bassist building your first pedalboard, this pedal deserves serious consideration.
For more details, visit joyoaudio.com.
Get the Joyo Scylla on Amazon today →
Other Joyo Gear You Might Like
If you enjoyed checking out this Joyo pedal, here are more Joyo products worth exploring — all tested and reviewed here on BassGearReviews:
- Joyo Gloam – Dark and Gritty sub-octave bass fuzz.
- Joyo Tidal Wave – Vintage preamp based on the Sansamp circuit.
- Joyo Monomyth Bass Preamp – Versatile preamp with EQ shaping and DI output.
- Joyo Double Thruster – Dual-drive section for layered grit and boost.




