FB-X Funky Box

The Guyatone FB-X Funky Box is a tube-driven envelope filter pedal designed to deliver automatic wah and swept filter effects for a wide range of musical applications. Utilizing real tube circuitry, this analog envelope filter pedal features controls for Threshold, Decay, and Level, allowing users to adjust the sensitivity, sweep speed, and output volume, including the ability to push amplifier input for added drive. The FB-X includes multiple switchable wah modes for expanded tonal flexibility across different frequency bands. Additional features include an LED effect status indicator, electronic silent switching for noise-free operation, and bass instrument compatibility. **Key features:** - Tube-driven envelope filter pedal - Switchable automatic wah and swept filter modes - Threshold, Decay, and Level controls - Bass instrument compatibility - Electronic silent switching and LED effect indicator - Compact design for easy integration into pedalboards