Beetronics Electronics Tuna Trem

The Tuna Trem, the Beetronics Tremolo in a Tuna Can

The Beetronics Tuna Trem brings the quirky spirit of the famous "Tuna Can" series into the world of Tremolo. Following the success of the Tuna Fuzz, the Californian brand applies this distinctive visual identity to a modulation pedal that is far more versatile than a simple volume variation effect.

Rather than aiming to reproduce a specific vintage model, the Tuna Trem revisits the major Tremolo families: broad sine-wave modulation, sharp square-wave chopping, rhythmic pulses and unstable textures. It also adds features designed for modern playing, including foot-controlled volume swells and a momentary kill-switch.

An expressive Tremolo for riffs, textures and live performances

The Tuna Trem is equally suited to guitarists looking to recapture the warm sway of a vintage amp and musicians eager to build more adventurous parts. Its straightforward controls make it accessible to beginners, while its nine Species provide plenty of scope for experienced guitarists to explore.

The Surfer Bee and Leafcutter Bee modes naturally fit into surf rock, blues, indie and garage rock. More sharply chopped or syncopated settings add definition to post-punk, funk, math rock and alternative rock riffs. The evolving patterns, bursts and swells also open up exciting possibilities for ambient music, modern pop, soundtracks and experimental creations.

Placed after overdrives and distortions, it chops up a saturated sound with highly rhythmic precision. Positioned before a fuzz or overdrive, it has more of an impact on the attack and on how the gain responds to volume variations. Combined with a delay or reverb, it becomes an excellent tool for creating animated pads and atmospheric introductions.

Nine Species to Make Your Sound Move

The Tuna Trem is built around a digitally controlled analog VCA Tremolo circuit. This design preserves the lively, musical character of an analog Tremolo while allowing Beetronics to offer more complex behaviours than a classic waveform.

The Species knob selects one of the nine modes. The Speed and Depth controls adjust the modulation speed and intensity respectively, with functions tailored to each Species. The footswitch does more than simply activate the effect: depending on the selected mode, it becomes a genuine performance tool.

• Surfer Bee: smooth, even sine-wave Tremolo, ideal for vintage rhythms and expansive arpeggios.
• Leafcutter Bee: bold, sharp square-wave Tremolo, perfect for highly pronounced rhythmic chopping.
• Bug Bee: intermittent lo-fi modulation that is deliberately fragmented and unpredictable.
• Pecker Bee: short, repetitive bursts of Tremolo to energize a riff or create a percussive effect.
• Helicop Bee: alternating strong and gentle pulses with a hypnotic character.
• Jatai Bee: syncopated patterns and offbeats to enrich the groove of a rhythmic part.
• Orchid Bee: gradually evolving texture, suited to soundscapes and more organic arrangements.
• Sweller Bee: a volume swell triggered by holding down the footswitch, for soft, enveloping note attacks.
• Morse Bee: momentary kill-switch function, ideal for punctuating a phrase, creating rhythmic silences or playing with the stutter effect.

The Sound

The Tuna Trem delivers broad, organic modulation that is particularly responsive to the way you play. Its analog VCA preserves a natural feel under your fingers, with a pulse that does not unnecessarily harden the guitar's sound. Moderate settings add subtle movement to chords and arpeggios; pushed further, it transforms a rhythm part into a punchy, percussive pattern.

The tonal palette ranges from round, retro Tremolo to extremely precise chopping, along with deliberately rough-edged and lo-fi modulations. This creative personality is part of the Beetronics universe, a brand whose pedals are appreciated by guitarists working across alternative rock, pop, experimental music and modern textures. The Tuna Trem therefore does more than simply add movement: it becomes an expressive instrument in its own right.

Technical specifications

Effects	Tremolo	Type	sector
Technology	Analog & Digital	Use	guitar
Format	Pedal

Circuit	analog VCA Tremolo with digital control	Audio input	6.35mm mono jack
Audio path	analog	Audio output	6.35mm mono jack
Tremolo modes	nine selectable modes, called Species	Enclosure	circular, made from a genuine tuna can
Bypass	true bypass	Place of manufacture	California, United States
Species potentiometer	selects the nine modes	Presentation box	included
Speed potentiometer	adjusts the speed or rise time depending on the mode	Documentation	included
Depth potentiometer	adjusts the modulation depth	Power supply	not included
Footswitch	activates the effect and advanced functions according to the selected Species	Required power supply	9 V DC
Swell function	momentary, in Sweller Bee mode	Power consumption	50 mA
Kill-switch function	momentary, in Morse Bee mode