Fulltone Supa-Trem ST-1 - $125 (Gaithersburg)

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The Fulltone Supa-Trem ST-1 is based on a JFET amp at the core of the circuit, so it has the character of tube tremolo. It features true bypass switching and is topped with blue/red LEDs that make it visible on dark stages. Plus, red LED flashes according to the tap tempo so you to see the speed of your effect.

Supa-Trem ST-1 can also be employed as a clean boost with 15dB range. It has switches to give you the option to choose between Hard (square) and Soft (sine) modes and go from full to half speed on the fly. It can be powered either with a single 9V battery or an adapter.

The Supa-Trem ST-1 replicates the tone of vintage tube tremolo utilizing a custom-designed Opto-1 photocell that retains the vintage tube amp character without the tickling sound. The ST-1 is organic and natural sounding. It offers enough options to satisfy even the most adventurous players and its sonic quality is ethereal. This one looks new and works flawlessly.

post id: 7920959055

posted: 2026-03-13 11:42

updated: 2026-04-18 08:51

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Fulltone Supa-Trem ST-1 - musical instruments - by owner - sale -...

The Fulltone Supa-Trem ST-1 is based on a JFET amp at the core of the circuit, so it has the character of tube tremolo. It features true bypass switching and is topped with blue/red LEDs that make...