Boss CS-3
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- This item is covered for 5 years
Essential Information About the Boss CS-3 Pedal
Essential Information About the Boss CS-3 Pedal
- Easy "studio" compression to dial in: it evens out your dynamics, tames peaks, and brings forward quieter notes for a more consistent performance.
- Smooth and musical sustain: ideal for making notes sing in clean, funk, pop, blues, or rock styles without crushing the richness of your tone.
- Built-in EQ + noise reduction: the tone control helps shape the attack and keeps the output clean with minimal hiss.
- Classic BOSS format: rugged, designed for live use and pedalboards, with buffered bypass to preserve the signal through long chains.
Manufacturer Information
Boss
https://www.roland.com
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Safety manager:
Roland Central Europe N.V.
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A BOSS Compressor That Became a Pedalboard Standard
The Boss CS-3 follows the lineage of compact BOSS compressors designed to provide effective and accessible compression for guitarists. It is appreciated for its ability to add control, sustain, and a more "held" playing feel, while remaining easy to integrate into any setup, from home studios to the stage.
Who Is It For, and Which Styles?
The CS-3 suits both beginners wanting to even out their volume and experienced guitarists seeking reliable daily compression. It excels in funk (clean and consistent attacks), country (twang and sustain), blues, and pop/rock (solos that stand out, more stable arpeggios). In the studio, it helps control takes without overloading the mix, and live it secures your dynamics, especially when modulation or delay effects follow.
Technical specifications
| Effects | Compressor | Type | sector |
| Format | Pedal | Use | electric guitar |
| EQ | Yes | Color | Blue |
| Nominal input level | -20 dBu | AC adapter (PSA series | sold separately) |
| Input impedance | 1 M ohm | Expected continuous-use battery life (alkaline battery) | approximately 10.5 hours |
| Nominal output level | -20 dBu | Expected continuous-use battery life (carbon battery) | approximately 26 hours (varies depending on actual conditions) |
| Output impedance | 1 k ohm | Option (sold separately) | PSA series AC adapter |
| Recommended load impedance | 10 k ohms or higher | Current draw | 20 mA |
| Bypass | Buffered bypass | Required voltage | 9V |
| Indicator | Check indicator (used to indicate the presence of a check battery) | Width | 73 mm |
| Input jack | 1/4-inch phone jack | Depth | 129 mm |
| OUTPUT jack | 1/4-inch phone jack | Height | 59 mm |
Customer reviews
What customers say
Summarized and selected by AI from recent customer reviews
Customers praised this compressor pedal for its precise controls and sustain enhancement. Many noted it "improves sustain noticeably" and features "precise settings." Some mentioned it's "a bit pricey" and can be "difficult to grasp in clean mode." A few reported noise when pushed to maximum settings. Overall, shoppers found it effective and well-built.
Review highlights
- âVery good product that can be finely adjusted, really a very good compressor/sustainerâ
- âVery good pedal, precise settings.â
- âEffective and interesting sustain function. Precise controls, impeccable sound quality.â
Based on 12 reviews
- 2 stars, 0 reviews
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Super Matos, ordered on Monday afternoon received on... Tuesday noon!!!
Very sturdy and easy to use quality pedal, that and a very light drive gives an extremely bluesy and flashy sound, great!!!Automatically translated
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Quite a bit improves the sustain and makes the notes click well;) maybe not the best, blow if you push all the way, but for the price I am satisfied!
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Very good compressor, significantly improves my sustain when coupled with my Boss OS-2. However, a bit difficult to understand in clean.
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effective and interesting sustain function. Precise controls, âbossâ finish and flawless sound.
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Very good product that can be adjusted finely, really a very good compressor/sustainer
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Questions frequently asked
What settings does the compressor offer to adjust the sound?
The four controls SUSTAIN, ATTACK, TONE, and LEVEL adjust respectively the amount of compression, attack response, tonal balance, and output volume. The TONE control notably allows adapting brightness according to the pickups and the amp.
Boss CS-3: battery or mains power?
The power supply requires 9 V and the consumption is 20 mA. A standard BOSS PSA power adapter can be used but is sold separately. The stated battery life reaches about 10.5 hours with an alkaline battery and about 26 hours with a carbon battery, depending on usage conditions.
Is the CS-3 equipped with true bypass?
The bypass is buffered, which helps to preserve the signal on a pedalboard with many cables.
For which styles is the compression of this pedal suitable?
For funk, it helps to achieve consistent attacks, while in country it supports twang and note sustain. In blues, pop, or rock, compression can stabilize arpeggios and bring out solos.
What are the pedal's dimensions and connections?
The size measures 73 mm wide, 129 mm deep, and 59 mm high. Inputs and outputs use 6.35 mm jacks, with an input impedance of 1 MΩ and an output impedance of 1 kΩ.



