Jam Pedals Big Chill Tremolo

Tremolo is not just an effect for roots musicians. It can be used in a variety of musical  applications, with the choppier forms especially suited to modern guitar playing. Like all their pedals, Jam pedals’ new tremolo is handmade in Greece.

This is the first Guitar Moderne review to feature a dedicated video demo, so be kind.

The Big Chill tremolo ($295 list) features toggle switch selectable square/sine/triangle waveforms. One footswitch toggles the effect off and on; a second selects between two separately adjustable speeds; while the third engages the Chop effect.


Two expression pedal inputs are offered: one controls the rate of Speed 2 and the other the overall depth (the actual depth control sets the maximum depth). Standard expression pedals can be used effectively but will not cover the full range of the controls. The Korg pedal I used seem to cover the full depth, but did not access the fastest, almost ring modulator speed available with the Speed 2 knob when the expression pedal was unplugged. For guaranteed full range expression you need to order Jam expression pedals separately. Internal trimmers adjust the Chop and Speed 2 levels. The Big Chill works with a 9V battery or 9V boss-type DC adaptor.

BC side

Along with knobs to control Speed 1, Speed 2, and Depth, there is a Level control. With the Depth control set to zero, this last knob can be used as a clean boost by setting the Level to your preference.

The sine wave offered a realistic representation of a Fender Deluxe Reverb type tube tremolo. The triangle wave reminded me of an Ampeg Reverberocket I used to borrow and loved. Both the triangle and the square wave setting created terrific sequencer style sounds when used in the Chop mode, especially when combined with Fuzz.

The Big Chill was the most transparent tremolo I have ever played— when engaged, my guitar tone changed not at all. They are also available with custom paint jobs, at a nominal extra cost.


True tremolo fans need quick access to more than one speed. Lacking a tap-tempo, the Big Chill still provides plenty of control over the rate from lazy waver to frenzied chop. Whether you need vintage tremolo or modern slicer-style effects, the Big Chill should be at the top of your list of pedals to check out.



3 thoughts on “Jam Pedals Big Chill Tremolo

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  3. Available in numerous colours and looks toggle switches find wide use is electrical appliances. Such switches are usually used to activate many electrical contacts on a single click. It also finds wide use in controlling big amounts of electricity and sometimes even the main voltage of electricity. You might have already related to the word toggle but to be precise it refers to a combination of two arms connected via a pivot which looks similar to an elbow. However, there has been a recent change in the use of this term as now snap actions have also started being referred to as toggles. Positive snap actions may or may not be based on toggle mechanism but they are off late known as toggle switches. :

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