Fulltone Supa-Trem ST-1 Tremolo Pedal

Tremolo Pedal with Photo-cell, Half/Full Speed Footswitch, "Soft" and "Hard" Footswitch, Volume Control, and True Bypass
Fulltone Supa-Trem ST-1 Tremolo Pedal image 1
Fulltone Supa-Trem ST-1 Tremolo Pedal image 1
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Fulltone Supa-Trem ST-1 Tremolo Pedal
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Amazing Tremolo Control at Your Feet!

The new and improved Fulltone Supa-Trem ST-1 pedal puts a versatile, great sounding tremolo right at your feet. The Supa-Trem ST-1 uses a custom-designed fast-recovery photocell to faithfully mimic the trem circuits from 60s-era tube amps with one cool distinction: it avoids the ticking sounds that frequently accompany these trem circuits and pedals for a cleaner sound. When you don't need the warble, the ST-1 can operate as a clean boost pedal. Get vintage tremolo tones and more with the Fulltone Supa-Trem ST-1.

Fulltone Supa-Trem ST-1 Tremolo Pedal at a Glance:
  • Pulls Double-duty as a Clean Boost
  • Flexible Options to Dial in the Perfect Tremolo Sound
  • Long-lasting pots for reliability
  • Who uses Fulltone?
Pulls Double-duty as a Clean Boost

Clever guitarists figured out that the previous Supa-Trem did a pretty awesome job as a clean boost by turning up the internal volume control and turning down the Mix control. Fulltone endowed the ST-1 with that same functionality, but this time the volume control has conveniently migrated to the top of the pedal. The same basic principle applies: Set the Hard/Soft switch to soft, turn the volume up, and the Mix down and you've got access to up to 15dB of clean gain. To add trem to this boosted signal, just step on the Hard/Soft switch again and you have anormal sine-wave trem with the boost. The Analog Devices JFET AD711JN at the heart of the circuit is what gives the Supa-Trem ST-1 its warmth and clarity.

Flexible Options to Dial in the Perfect Tremolo Sound

The large knobs let you set the Rate and Mix with your foot for on-the-fly adjustments. Plus, a red LED lets you see the speed at all times (even when the pedal is bypassed). This lets you adjust the trem speed before you need to come in with it, so you're always in sync with your bandmates. The Hard/Soft switch toggles between a gentle sine wave (Soft) or a square wave stutter (Hard). No matter how you have it set, the Supa-Trem ST-1 adds a classic trem flavor to your tone without signal degradation.

Long-lasting pots for reliability
Fulltone's custom-made brass-shaft pots are among the strongest and smoothest feeling pots available. These amazing pots are mounted to the interior PCB board via a proprietary "thru-PCB" method rather than having the pot be secured by the pot terminals, drastically reducing pot-related failure. This method keeps Fulltone pedals up and running for the duration of your playing days. Plus, this eliminates the need for a bunch of jumper wires, keeping your tone as pure as humanly possible.

Who uses Fulltone?

The list of Fulltone fans reads like a who's who of guitar heroes. Both Ron Wood and Keith Richards have Fulltone gear in their touring rigs, as does Nigel Tufnel from the legendary British metal band Spinal Tap, and Boston bad-boys Joe Perry and Tom Hamilton. Punk/rockabilly mainstay Reverend Horton Heat is a Fulltone convert. Other notable Fulltone users include Pearl Jam's Stone Gossard, Jack Bruce of Cream, perennial alt rocker Lou Reed, and Tom Petty along with Heartbreaker Mike Campbell. And this just scratches the surface!

Fulltone Supa-Trem ST-1 Tremolo Pedal Features:
  • Photo-cell trem for classic tremolo sound without the ticking
  • Separate footswitch for "hard" and "soft" waveform for added flexibility
  • Can act as a clean boost for more options
  • Footswitchable Half/Full speed for quick adjustments
  • True bypass to maintain signal purity when bypassed
Why buy Fulltone?

Fulltone was founded in 1991 by session guitarist, composer, performer, and electronic tinkerer Michael Fuller. His pedals were born out of love for music and tone, as well as the frustration at the inconsistencies and the often fragile nature of vintage pedals. Fulltone pedals are 100% handmade in Southern California using the finest components, including custom-made 22-gauge copper wire with no tin coating, Fulltone-designed 3PDT switches, and custom-made brass shaft pots, mounted using Fulltone's proprietary "thru-PCB" method. The end result: Fulltone pedals are built to last and sound amazing.

Additional Media

Supa-Trem ST-1 Tremolo Pedal User Manual
Sweetwater's Fulltone Supa-Trem ST-1 Tremolo Pedal Review
Welcome Fulltone to the Sweetwater Family

Tech Specs

Pedal Type Tremolo
Inputs 1 x Instrument
Outputs 1 x 1/4"
Batteries 1 x 9V
Height 2.5"
Width 6"
Depth 3.25"
Weight 1.5 lbs.
Power Supply Included No
Manufacturer Part Number Supa-Trem 1

Customer Reviews

Based on 12 reviews
Write your review

Always on

Awesome tremolo sound. This pedal sounds so good and warm that I leave it on when playing clean (most of the time) with just the slightest hint tremolo. It boosts my clean tone in a warm, organic way. Love this pedal.


One of the best tremolo pedals I've ever owned. For what it costs, it's a steal.....
Music background: Professonal


Amazing sounding tremolo with knobs that you can adjust on the fly with your feet. Sold an Earthquaker Hummingbird for this pedal which can do the hard machine gun chop and so much more. Such a musical pedal.

Best Tremolo

This is the best tremolo I've used by far. Doesn't change your tone at all, perfect tremolo effect. You could even use it as a clean boost thanks to the volume knob. Speed and Mix can be adjusted with your feet a lot easier than most pedals. Buy it.

Best Tremolo Out There

Straight up the Best Tremolo Out There. I tried other tremolos like the black cat mini trem and the Boss tremolo. This one blows them away. It keeps your tone intact. Its easy to use and change settings on the fly. You can fix any volume drop issues with the clean boost. It really makes a big difference.The half speed is awesome! You can get every type of tremolo from this. Buy it. You will be happy. This pedal is quiet! Its a true case of you get what you pay for. Honestly, I would buy it again if anything happened to it. It is that good.
Music background: Just Play At Home, Hobbyist
See also: Fulltone, Fulltone Tremolo Pedals