Pre-Owned Keeley Electronics C4 4-Knob Compressor

The Keeley Electronics C4 4-Knob Compressor – Studio-Grade Sustain and Tone Control in a Compact Stompbox

Dynamic Range Control with Vintage Studio Vibe

The Keeley C4 4-Knob Compressor brings the revered tone-shaping power of rack-mounted studio gear to your pedalboard in a compact, easy-to-dial-in format. Designed for players who demand refined compression without sacrificing clarity or punch, this pedal excels in adding harmonic sustain, evening out dynamics, and tightening up your signal whether you're chicken-pickin', fingerpicking, or laying down lead lines.

Transparent Compression with Tone Sculpting Versatility

At the heart of the C4 is a smooth and transparent compression circuit that flatters nearly any rig. Unlike one-size-fits-all options, the four-knob layout gives you hands-on control over Sustain, Level, Attack, and Clipping—so you can precisely tailor your feel and response. From subtle signal leveling to squashed country snap or violin-like sustain, the C4 adapts to your touch and tonal preferences without ever sounding lifeless or sterile.

Built for the Demanding Player

Handbuilt with top-tier components and designed by one of the most trusted names in boutique pedal engineering, the Keeley C4 delivers rock-solid performance in a roadworthy chassis. Whether you run it first in line or post-drive for tone smoothing, it holds its own as a key player in any serious signal chain. Keeley’s dedication to hi-fi audio principles ensures the C4 retains your guitar’s natural voice while enhancing its best characteristics.

Compact Design, Maximum Control

Don’t let the size fool you. The C4’s minimal footprint hides an impressive range of tonal flexibility. Dial in fast attack for punchy staccato lines or ease it back for a smoother bloom. Sculpt your output volume precisely with the Level control, and add or tame harmonic clipping to suit your style. Whether you're cleaning up a hot signal or adding girth and sustain to solos, the C4 performs with studio-grade precision.

Specifications

• 4-knob control layout: Sustain, Level, Attack, Clipping

• True bypass switching

• Handbuilt in the USA

• Includes original box and manual

• Power supply not included

• Requires 9V DC center-negative power

• Condition: excellent working condition with only light surface scratches on the left, right, and bottom panels
   

This item is a Pre-Owned effects pedal and ships fully insured with signature required.