JAM Pedals "Bliss!" Chill

The JAM Pedals "Bliss!" Chill is an analog sine-wave tremolo pedal with a second life as a boost. JAM Pedals classifies it as an amplitude tremolo, meaning it shapes the signal by varying its volume in a smooth sine-wave cycle rather than with a sharper or more complex modulation shape. The maker describes the circuit as producing "smooth, vintage-style amplitude modulation suited to surf, western and slow pulsing textures"¹. It sits among JAM's Chill family of tremolos, alongside the "Tetris" Chill, "Achenbach" Chill and "Amethyst" Chill.

The controls: Level, Depth and Speed

The Bliss! Chill keeps things to three knobs, each with one job:

Level and Depth work together in a way that gives the pedal its second function. With Depth at zero there is no tremolo at all, and Level becomes a straight volume lift¹.

Using it as a clean boost

JAM Pedals describes the boost side directly: "Set Depth to zero to remove modulation, then use Level as a harmonically rich clean boost"¹. In practice that means one pedal can cover a slow vintage pulse for surf and western material and, when Depth is rolled off, act as a boost that adds some harmonic character rather than a purely flat volume increase. Players comparing it with dedicated boost pedals can see how it sits next to others on the Boost Pedals page, including JAM's own "Dala" Boomster mk.2, which is a boost-only design.

Power, bypass and size

The pedal runs on a 9V battery or a 9V DC center-negative adapter, and JAM Pedals lists the bypass as true bypass, so the signal is not buffered when the pedal is off¹. Its 6 mA current draw is low by pedal standards¹.

The enclosure measures 11.1 x 7 x 4.8 cm including jacks and controls and weighs 230 g, which puts it comfortably on a crowded board¹. JAM Pedals also offers a 30-day money-back guarantee with a refund, no questions asked¹.

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