Universal Audio Flow Vintage Tremolo Guitar Pedal

Evolved from our flagship Astra Modulation Machine, Flow Vintage Tremolo gives you three flavours of tube-driven wiggle and shake — from old school to modern — in a dapper, compact package.

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Universal Audio Flow Vintage Tremolo Guitar Pedal

Universal Audio Flow guitar effects pedal with three flavours of tube-driven tremolo effects, tap tempo, perfectly emulated preamp circuit, volume boost, and true/buffered bypass, all in a compact stompbox.

Three Flavours of Authentic Tube Tremolo, at Your Feet.

Evolved from UA’s flagship Astra Modulation Machine, Flow Vintage Tremolo gives you three flavours of tube-driven wiggle and shake. Furthermore, they go from old school to modern — in a dapper, compact package.

Dharma: Experience Thick Harmonic Tremolo

Immerse yourself in the chewy throb of early ’60s American “brown” amps. Also, add a syrupy mix of volume fluctuation and phase shifting. Go far beyond the original circuit, it’s perfect for the vintage soul, surf, and even Uni-Vibe textures.

65: Indulge in Perfect Tube Amp Tremolo

Play through an exhaustive end-to-end emulation of a classic 1965 American tube amp’s optical tremolo circuit, and get the pulsating shimmer of the most famous “vibrato” ever created. In fact, it sounds just like your favourite old record.

Square: Add Modern, Choppy Textures

Built from the ground up using UA’s own virtual optical photocell, get the rippling beauty of square waveforms and dive into rhythmic trem effects that enhance any genre, from modern pop and R&B to blues and indie rock.

Get the Authentic Tone of a Tube Preamp with Flow

Flow gives you the warm, complex sounds of a tube preamp. Specifically, in this case from early and mid-’60s American combos — so your tremolo effects are more present, three-dimensional, and musical.

Paint the Town with a Rugged, Compact Stompbox

Built for years of trustworthy performance, Flow Vintage Tremolo gives you switchable true/trails bypass, tap tempo, and “makeup gain” Volume control. It ensures your tremolo effects are heard loud and proud for years to come.

Flow Key Highlights:

  • Authentic emulations of three tube-driven tremolo effects, captured in a compact stompbox
  • Perfectly captured tube preamp for fat, three-dimensional tremolo tones
  • Three tremolo modes: Dharma (harmonic tremolo), 65 (round, sine wave), and Square (choppier, square wave)
  • Authentic emulations of three tube-driven tremolo effects, captured in a compact stompbox
  • Perfectly captured tube preamp for fat, three-dimensional tremolo tones
  • Three tremolo modes: Dharma (harmonic tremolo), 65 (round, sine wave), and Square (choppier, square wave) 
  • Onboard tap tempo for syncing trem effects
  • Volume control and true/buffered bypass 
  • Timeless UA design and craftsmanship, built for decades of dependable performance

Power Requirements: Isolated 9VDC, center-negative, 250mA minimum (sold separately)

Inputs: 1 x 1/4” TS unbalanced

Outputs: 1 x 1/4” TS unbalanced

USB Connection: USB Type-C for updates via computer

Height: 5.81 cm (2.29 inches)

Width: 6.55 cm (2.58 inches)

Depth: 12.07 cm (4.75 inches)

Weight: 0.659 lbs (0.299 kg)

For more information, please visit the manufacturer's website.