In 1960, Leo Fender introduced a circuit in his Bandmaster and Vibrasonic amps called the "Harmonic Tremolo" (which proved to be a misnomer, since it was a volume effect, not a pitch effect). Essentially, the ampâ,s signal was split into high frequency and low frequency components, with the output switching back and forth between the two, resulting in a dreamy effect similar to the Uni-Vibe. Toggle up is a great sounding amp trem, while toggle down is our take on harmonic trem effect. Our 3 Series Harmonic Trem allows you to utilize Leo Fenderâ,s revolutionary effect in a package much easier to tote than a vintage amplifier.

The JHS Pedals 3 Series is a collection of pedals designed to give you affordability and simplicity without compromising quality. Each 3 Series pedal is made by us in Kansas City, MO, using high-quality parts, quality control, and attention to every detail. Each pedal has three simple controls and one toggle that offer a wide range of sounds, perfect for beginners and professionals alike. The JHS 3 Series will inspire your playing and help you explore new sounds at a totally approachable price point.