audiobriefs
10:55in productionCh. 1 · What it is/ 10:55 · ceiling 15 min
Effects & pedals

Boss CS-2 Compression Sustainer

Boss

A modded CS-2 with zero specs — useful only if you like guessing how it behaves.

The Boss CS-2 Compression Sustainer is a guitar compressor/sustainer. This unit is a modified version branded 'Fat Old Comp' by MSM Workshop. No technical specifications are provided.

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Chapters & takeaways4
  1. 1:01
    What it is

    It is a guitar compressor/sustainer, nothing more.

  2. 3:17
    Not factory issue

    This unit is not stock — it's a custom MSM Workshop mod branded 'Fat Old Comp'.

  3. 4:41
    No specs, no compromises

    No technical specifications exist for this product — none at all.

  4. 6:25
    What it does — and doesn't say

    It delivers compression and sustain, but only through a black box with no documentation.

Worth your time?

Yes. Use the whole thing.

2.5/ 5
What works
  • as a guitar compressor/sustainer
  • as a physical object with knobs and switches
  • as a modified variant of the CS-2
What does not
  • provide technical specifications
  • identify year of introduction
  • describe circuit design
  • state intended use beyond 'guitar'
Use it if
  • players who rely on published specs
  • engineers seeking repeatable settings
  • buyers comparing signal path details
Skip it if
  • players comfortable with undocumented behaviour
  • modders open to reinterpretation
  • collectors drawn to workshop-branded variants
The written brief1 min read

What it is and what it was built for

The Boss CS-2 Compression Sustainer is a guitar compressor/sustainer. This specific unit is a modified version customised by MSM Workshop.

How it works, in terms a player would use

It compresses and sustains guitar signals using controls not specified in the source material.

What it does better than anything else

It offers a custom-modified take on the Boss CS-2 — branded ‘Fat Old Comp’ — but the source gives no basis to claim superiority over other compressors.

What it does badly

It withholds all technical specifications, leaving players without data on threshold, ratio, attack, release, or signal path.

What people made with it

The source provides no information about what people made with it.

Who should use it, and who should not

Players who trust unverified mods and do not require technical transparency should consider it. Anyone needing spec-based decisions should avoid it.

Is it worth your time

It is worth your time only if you seek a modded version of the CS-2 with no documented technical specifications.

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