Universal Audio UAFX Flow Vintage Tremolo FX Pedal

SKU: UAGPSFLOW MFR: GPS-FLOW
$169.00
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Key Features

  • Explore vintage tremolo effects with the UAFX Flow, delivering classic tones.
  • Achieve a wide range of tremolo sounds, from subtle to choppy, with this versatile pedal.
  • Enjoy exceptional sound quality with a frequency response of 20 Hz to 20 kHz.
  • Compact and durable metal construction ensures this tremolo pedal will last for years.
  • Easily integrate this user-friendly tremolo pedal into your existing pedalboard setup.
  • Craft unique soundscapes; perfect for guitarists seeking a dynamic tremolo effect.
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Special Order?Estimated to Ship: 08/17/2025
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Universal Audio Flow Vintage Tremolo Specifications

General

General

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  • Input Impedance

    1 Megohm

  • Output Impedance

    500 Ohms

  • Frequency Response

    20 Hz to 20 kHz (+/-1 dB)

  • Maximum Input Level

    12.2 dBu

  • Maximum Output Level

    12.1 dBu

Inputs / Outputs

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  • USB I/O

    1 x USB-C Female Input

  • Audio I/O

    1x 1/4" TS Hi-Z/Instrument Input
    1x 1/4" TS Hi-Z/Instrument Output

  • Power Source

    AC Adapter with Power Brick (Not Included)

  • DC Input Power

    9 VDC at 250 mA

  • Operating Current

    250 mA

Physical

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  • Color

    Orange

  • Material

    Metal

  • Dimensions

    5.55 x 3.62 x 2.56" (14.1 x 9.19 x 6.5cm)

  • Weight

    9.92 oz (281.2g)

  • UPC Code

    819937003905

About Universal Audio Flow Vintage Tremolo

With the UAFX Flow Vintage Tremolo FX Pedal, you can experience the authentic resonance of tube tremolo right at your feet. This compact, yet robust, stompbox is the evolution of our flagship Astra Modulation Machine, offering three distinct variations of tube-driven tremolo effects - from classic to contemporary.

The Flow Vintage Tremolo FX Pedal provides you with three meticulously crafted emulations of legendary tube amp tremolo effects, ranging from opto to harmonic. Delve into the rich, authentic tones and effects generated by the perfectly emulated tube preamp section. Sync your tremolo with the tap tempo feature and amplify your sound with the Volume control boost effects.

The Dharma mode allows you to experience the thick harmonic tremolo, reminiscent of early '60s American "brown" amps. It offers a unique blend of volume fluctuation and phase shifting, ideal for vintage soul, surf, and even Uni-Vibe textures.

The 65 mode offers an exhaustive emulation of a classic 1965 American tube amp's optical tremolo circuit, providing the pulsating shimmer of the most renowned "vibrato" ever created. It's like playing your favorite vintage record.

The Square mode, built from scratch using our proprietary virtual optical photocell, delivers the rippling beauty of square waveforms. This mode is perfect for rhythmic trem effects that complement any genre, from modern pop and R&B to blues and indie rock.

The Flow Vintage Tremolo FX Pedal also features the warm, complex sounds of a tube preamp, specifically from early and mid-'60s American combos. This ensures your tremolo effects are more present, three-dimensional, and musical.

Designed for durability and longevity, the Flow Vintage Tremolo FX Pedal is a rugged, compact stompbox that offers switchable true/trails bypass, tap tempo, and a "make up gain" Volume control. This ensures your tremolo effects will be heard loud and clear for years to come. Experience the authentic tone of a tube preamp with the UAFX Flow Vintage Tremolo FX Pedal.

Universal Audio Flow Vintage Tremolo Features

  • 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

Product Documents

User Manual

Key Features

  • Explore vintage tremolo effects with the UAFX Flow, delivering classic tones.
  • Achieve a wide range of tremolo sounds, from subtle to choppy, with this versatile pedal.
  • Enjoy exceptional sound quality with a frequency response of 20 Hz to 20 kHz.
  • Compact and durable metal construction ensures this tremolo pedal will last for years.
  • Easily integrate this user-friendly tremolo pedal into your existing pedalboard setup.
  • Craft unique soundscapes; perfect for guitarists seeking a dynamic tremolo effect.

What's in the box:

  • Universal Audio UAFX Flow Vintage Tremolo FX Pedal
  • (Power Supply Not Included)
  • Universal Audio 1 Year Limited Warranty