The Unfiltered Audio Sandman is far more than just a delay plugin; it’s a wormhole to the dreamtime states of your sounds. It’s a deceptively simple gateway to a microcosm of sonic dimensions bordering the absurd. It’s a new way to extract loops and grains from a sound that can be as close to or as far flung from the original, as you like. From the input of just a single sample, Sandman opens a Pandora’s box of endless sonic possibilities.

At first glance, Sandman offers the most basic parameters found on a delay plugin – host synch-able Delay Time and ping-pong feedback, along with a wet/dry mix and a filter for good measure. Use these standard features for flanging, comb filtering, or adding string-like texture to percussive sounds. The Sample Rate parameter can add vintage grime or completely decimate a sound by directly lowering the sample rate of the DSP engine; an adjacent Dirt switch gives you the loving character of a lo-fi recording.

Sandman’s namesake is its unique SLEEP button - the hub for the granular wonders that lay in wait.

With SLEEP, you can ‘freeze’ audio at a point in time to create a loop based on the Delay value, allowing you to adjust the sample Start and End points. Long Delay values can produce beat-repeats or stutter effects, while shorter values turn Sandman into what is essentially a wavetable synthesizer; the Start and End times can even overlap each other, reversing your sample by up to 100%. Drop the Sample Rate and Delay time while Sandman is asleep, and you now have granular synthesis at your fingertips. Several of these parameters can be modulated by Sandman’s synch-able LFO section, while an advanced de-clicking algorithm ensures clean edges no matter how much mayhem ensues. But if it ever gets out of hand (which it almost certainly will), there’s always the handy Kill switch to wake yourself back up.

Sweet dreams.

Widen and deepen your sounds, or harvest mind-blowing samples and sweeteners from the most unsuspecting of material. Sandman is an indispensable tool for the audio alchemist. Activate the 14-day fully functional demo with your Plugin Alliance account to hear for yourself!

New for Version 1.1:

  • Ping-Pong delay mode
  • Kill Switch
  • Dry/Wet is now a lockable parameter
  • Double-clicking ‘stop’ on the transport in your DAW will now empty non-frozen delay buffers
  • Fixed clicks when entering and exiting Sleep mode
  • Fixed synced LFOs being affected by Sample Rate manipulation
  • DSP performance and RAM usage improved by nearly 50%
  • Optional tooltips for every control
  • Several automation improvements, greater compatibility with external MIDI controllers
  • Added AAX native and VST3 formats


  • Unique ‘Sleep’ function creates locked loops by freezing delay buffer, allowing the Start and End time to be manipulated by up to 100% 
  • Sample Rate parameter directly controls the time-frequency domain of the sample, slowing or re-pitching the sound
  • Dual LFOs allow bipolar modulation of nearly every parameter
  • ‘Dirt’ switch for some gritty vintage goodness
  • Ping Pong mode for stereo effects
  • Wet/Dry mix for parallel processing
  • Granulate or reverse loops, then mangle or morph them into a completely different sound
  • Add fluttery spring echo or silky ambience with time, feedback, and filter controls in mono or stereo
  • Create interesting warps and warbles for sound design or live performance
  • Wide-ranging delay times, from 5ms to 5s; get up to 8min by adjusting the Sample Rate!

Audio Examples

Industry Reviews

  • Matt Lange

    Matt Lange

    Producer/Composer/DJ (mau5trap, isoRhythm, Anjunadeep)

    Sandman is fantastic as a quick and easy FSU type plugin. I'm particularly enjoying the ability to route an LFO to Feedback amount. It's great for textures.

  • Soundprank/Colin E. Fisher

    Soundprank/Colin E. Fisher

    Anjunabeats, Armada, Enhanced Music

    Very few delay units get me excited these days, because very few have something new to offer. Along comes the Unfiltered Audio Sandman, the little box with a beating heart of an old forgotten… Read More

  • AudioNewsroom


    If you’re looking for something to spark creativity – this is an easy recommend... You really need to grab this plugin – it’s too fun!

Customer Reviews

  • Sandman

    by Abattoir
    Excellent noise/glitch plugin!
  • Delay

    by Ger
    Excelente delay, un muy buen delay con opciones diferentes a otros
  • Amazing is an understatement!

    by Tone
    This is the best delay plugin I've used thus far. Anything is possible! Send your tracks to a bus and add the Sandman delay for complete control. This plugin gives you the ability to choose delay… Read More
  • dlay

    by DearVR
    great plugin to create space and wideness to every track!
  • Sandman

    by OSAR
    Cool plugin like all of the Unfiltered Audio products. Difficult to use and understand how to use it musically. This will take some time to learn.


  • Computer Music Value Award

    Computer Music Value Award

    In 2015 Sandman received the Value Award from Computer Music Magazine

  • Computer Music Performance Award

    Computer Music Performance Award

    In 2015 Sandman received the Performance Award from Computer Music Magazine


Supported Plugin Formats
AAX Native, AU, VST2, VST3

Supported Operating Systems
macOS 14 down to macOS 11
Windows 11 down to Windows 10

Intel or Apple Silicon architecture

x64-compatible CPU

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM




With the Installation Manager you can select, download & install all the Plugin Alliance products. Select any and all formats you need for your system! Mac & PC.



Unfiltered Audio Sandman - Changelog

Version 1.4.1 (Mar 16, 2023)
- Added AAX ARM support for Apple Silicon.

Version 1.4.0 (Mar 30, 2022)
- added Apple Silicon support

Version 1.3 (Jan 31, 2017)
- Fixed inconsistent behavior for sleep and tempo sync parameter
- Fixed Audio Suite versions processes audio differently than adjusted
- Fixed Sandman and G8 plugin versions differ from installer versions
- Fixed Touch Automation

Version 1.2.1 (April 1, 2016)
- Fixed factory preset install on Mac (regression)

Version 1.2 (Jan 18, 2016)
- Fixed LFO readout for AAX 64-bit on Windows
- Fixed factory preset install on Mac

Version 1.1 (Oct 5, 2015)
- Release version