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Boss CS-3 Compression Sustainer Pedal

Dolphin id:12698 Product SKU:CS-3

In stock

The Boss CS-3 compresses louder signals while boosting lower signals for smooth sustain without degrading the original sound quality. Onboard EQ for precise tonal control and low-noise design for super-quiet operation.

Why not check out our CS-3 with a FREE 6M Guitar Lead HERE

See our Rough Guide to Compression in the Full Description

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Compresses louder signals while boosting lower signals for smooth sustain without degrading the original sound quality. Onboard EQ for precise tonal control and low-noise design for super-quiet operation.

This is a classic Boss pedal, used by many famous players such as John Frusciante (Red Hot Chili Peppers), John Squire (Stone Roses) and others. This is the perfect pedal for guitarists and bassists who want to sound their best.

Key Features:

  • Compact compression/sustainer pedal with high-quality circuitry
  • Compresses loud signals and boosts softer signals for a smooth overall sound
  • Onboard Level, Tone, Attack and Sustain controls for precise tonal shaping
  • Low-noise design for super-quiet operation
  • Boss 5-year warranty

A Rough Guide to Compression:

A compressor is similar to a level control, restricting the overall range of an input signal, limiting the amount of variation between the loudest and the softest sounds. Used heavily in Studios, it also works well as a pedal. Compressors 'smooth' out the volume of what you are playing and keep everything at the same level of volume.

The controls you are given to set up a compressor are usually:

  • Threshold – how loud the signal has to be before compression is applied.
  • Ratio – how much compression is applied. For example, if the compression ratio is set for 6:1, the input signal will have to cross the threshold by 6 dB for the output level to increase by 1dB.
  • Attack – how quickly the compressor starts to work.
  • Release – how soon after the signal dips below the threshold the compressor stops.
  • Knee – sets how the compressor reacts to signals once the threshold is passed. Hard Knee settings mean it clamps the signal straight away, and Soft Knee means the compression kicks in more gently as the signal goes further past the threshold.
  • Make-Up Gain – allows you to boost the compressed signal. as compression often attenuates the signal significantly.
  • Output – allows you to boost or attenuate the level of the signal output from the compressor.

Now you can extend your enjoyment with the Boss Pedal Sketch App which allows players to review sounds and customise pedal settings.

£ 79.00 Web price, inc VAT

Ex Vat:
£65.83, VAT at 20.00%
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Boss CS-3 Compression Sustainer Pedal Reviews


A True Classic

This Pedal (alongside my SD-1 and my Digitech Whammy) is my favourite thing on my pedalboard for several reasons, the main one being its incredible versatility. My guitar playing is extremely varied from light rock to blues and Metal which are all at opposite ends of the polaris yet my CS-3 always manages to find its way on, whether it be giving my \\\\\\\'BB King tone\\\\\\\' some extra punch or (with the compression turned almost right down) adding a seemingly never ending sustain to my Lead tone. Honestly whether your playing Beatles-esque or Clapton-esque, hell even Dimebag-esque riffs this pedal is essential


Modified Cs3

I used to play with a stock Cs3. Although the pedal is quite value it has some problems. For instance is very noisy when the sustain know pass the middle point and it sounds a bit too thin. After looking for other compressors a mate told me about a company that sells kits to modify pedals. They got a site advertising their products:


I was a bit sceptic at the beginning but I finally contacted them and bought one of their Cs3 Squeezer kits. I installed the kit and the different is unbeliable. Much more body and less noise. I am know going to keep on using my modified Cs3 until it breaks and when this happens (if) I will get another one and modify it again.

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CS-3 Compressor/Sustainer

Such an under-rated pedal. Because you cant immediatly hear it like you can a delay/trem/flanger then you assume it isnt contributing to your sound. This pedal sings when playing high gain lead, artificial harmonics. The sustain is amazing compared to the new Behringer or the Danelectro models. Only reason I an 9 is because I cant get that nice Quack sound on clean patches although I can get a nices sharp attack sound which adds a lot of emphases on the instance a note is picked, giving it a sharp attack which i like when playing Tool style clean sounds. Overall, a truely great pedal but it needs time, plug it in for a day and play then unplug it and play the same stuff, then you notice!!!

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