3 Leaf Audio Chromatron State Variable Filter

The latest pedal out of 3 Leaf Audio’s corner is the Chromatron, a versatile analogue filter that can go from vintage, Hendrix-esque quacks to futuristic synth soundscapes.

This stompbox features an original envelope detector circuit that mirrors instrument dynamics in a musical fashion. Built with audiophile-grade components, the Chromatron has a low-noise signal path encourages a clear and defined filter response.

Add an external expression pedal to the mix and the filter cutoff can be manually controlled to produce lush, synth-like filter movement.

There are seven main knobs that govern filter response: The usual suspects such as “Response”, “Tone”, “Mix”, “Attack” and “Decay”, along with “Resonance” and “Boost”. The former sets the level of filter feedback, and the latter sculpts post-filter gain. When you’re in expression control mode, the “Response”, “Attack” and “Decay” knobs are disabled.

Check out the pedal in action here:

Retails at $349. More info at 3leafaudio.com.