Overview

This is a genuine 1980 BOSS CS-1 Compression Sustainer, an early Made in Japan silver screw example from the earliest runs.

The CS-1 was the first compressor released in the famous BOSS compact pedal series and remains one of the most distinctive. Unlike later compressors, it features a unique Normal/Treble mode switch, allowing everything from smooth vintage compression to brighter, more articulate tones that suit single coils exceptionally well. Early silver screw examples have become increasingly desirable with collectors and players alike.

Specifications

• Year: 1980

• Country of Manufacture: Japan

• Version: Silver Screw

• Serial Number: 10100

• Circuit: Original early MIJ analogue compressor

• Controls: Level, Sustain, Normal/Treble Mode

• Power: 9V Battery or BOSS ACA Adaptor

✅ Condition - fully functional, works exactly as it should, cosmetics as pictured.

Good minor vintage wear throughout with no modifications. A clean original example that’s becoming increasingly difficult to find.

What’s Included

• BOSS CS-1 Compression Sustainer pedal

📦 Shipping - Carefully packed and fully insured Australia and Worldwide. Discreet international shipping provided.

Final Notes

If you’re looking for an original 1980 silver screw BOSS CS-1, this is a great example of one of the most collectible early compact BOSS compressors. Perfect for vintage pedal collectors or players chasing smooth, musical analogue compression with the unique flexibility of the original CS-1 design.