The CostaLab ChorusLab STEREO is the latest evolution of our renowned ChorusLab pedal. We took everything that made the original a favorite among guitarists and bassists—its warm, deep, and articulate tone—and enhanced it in every way.

The standout feature? A true STEREO output that delivers an expansive and immersive sound experience. The circuit is designed to provide two modulated chorus signals with 180° phase shift between the Left and Right channels, resulting in a rich stereo field full of motion and depth. Perfect for dual-amp setups or for taking full advantage of stereo ambient effects.

In mono mode, you can choose which output to use:

• L (Left) for the in-phase signal

• R (Right) for the out-of-phase signal (180° shift)  

This option allows you to phase the audio line.

We’ve also reduced the pedal size to make it easier to fit into any pedalboard, without compromising quality. Inside, a four-layer PCB ensures optimal performance, low noise, and long-term reliability—engineered with all our experience and know-how.