JCA Vector Boost

The Ultimate Partner for your Volume-Pot

Say Goodbye to a dull Sound. Bring back the Dynamics

The JCA Vector Boost is no ordinary pedal. It’s a handcrafted precision tool for guitarists who control their sound via their guitar’s volume knob. It solves the biggest problem when turning down the volume: the loss of brilliance and liveliness.

The Ultimate “Always-on” Concept

I designed the Vector Boost to be the heart of your signal chain.

• Neutral Starting Point: When the knob is set to 0, the pedal delivers exactly the same level as your input signal (unity gain). Here, it acts as a high-quality buffer that stabilizes your signal and prepares it for long cable runs.

• Massive headroom: Turn the knob up and get up to +18 dB of the purest clean boost to push your amp or solo forward without changing your guitar’s character.

The Savior for Modeling Rigs

Especially with digital setups (Kemper, Fractal, Quad Cortex, plugins, etc.), the tone often sounds lifeless and flat when you turn the volume down—and the fun factor gets lost. The Vector Boost brings back that analog interaction. Your modeler suddenly feels like a breathing, responsive tube amp again.

Pure Analog & Industrial Design

• High-Frequency Preservation:

Your presence is fully preserved at every guitar volume level

• Ultra-Low Noise:

Low output impedance ensures an extremely low-noise signal.

• Battery-Powered Only—for Good Reason:

For the purest power supply without any PSU noise

• Indestructible: The massive metal chassis in an industrial look acts as a tank for your board – handmade for harsh daily life on tour.

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