Unique Harmonics
BIG AL is a dual-stage tube saturator that offers a broad palette of marvelous sound flavors flowing from the interactive network within its transformer-coupled pre and power amp. Based on completely novel circuitry and authentic NOS components from the 1930s, the one-off analog hardware has been exclusively designed for this plugin.

Filter Freak
BIG AL's frequency conditioning begins right in the EF9 preamp stage. The Low control is implemented as a Baxandall filter which allows adjusting saturation intensity around 100Hz in optional combination with boosting or cutting the bass at the same time.

The High control is an additional EQ band placed in front of the preamp tube. Its peaking filter boosts or cuts high-frequency content around 10kHz which is essential for inciting or taming BIG AL's treble aggression potential.

Onboard Mods
A jumper matrix grants access to BIG AL's core circuitry: Emphasis Shift, Bass Compensator and Voltage Sag provide powerful options for making complex changes to the distortion profile on the fly by inserting or pulling a few simple plugs.

The finishing spice is added by the AL4 power pentode and its output transformer, driven hot by the preamp stage. The result? A truly gorgeous kind of harmonic saturation that will always sound organic, musical, and bold.


FREE Presets

George Seara Presets


  • Tube saturator built around vintage components from the radio era
  • Uses pre and power tubes to generate sound coloration (‘The Power Saturator’)
  • Emulation based on a one-off hardware created exclusively for this plugin
  • Straight forward user interface spiced up with three jumpers for in-depth onboard mods
  • Very musical and analog sounding saturation and filters

Audio Examples

Industry Reviews

  • George Seara

    George Seara

    Mixing & Recording Engineer (Shawn Mendes, James Bay, Drake, Sting)

    Love this, Guys! It’s quick, easy, and intuitive, and best of all is that it sounds KILLER!! On drums, bass, guitars, synths, and samples, this is such a great tool to add glorious harmonic… Read More

  • Greg Wells

    Greg Wells

    Grammy-winning producer, mixer, songwriter (Taylor Swift, Adele, Pharrell Williams, Kid Cudi)

    Big Al is gorgeous! I love using it subtly across the mix or individual elements.

  • Brian Malouf

    Brian Malouf

    Producer and Mixer (Michael Jackson, Queen, Madonna, Pearl Jam, Stevie Wonder)

    It’s also one of those boxes that improves the sound of the instrument by just instantiating it. The transients, with just a little drive and high-end eq, were immediately beautiful - still… Read More

  • Darrell Thorp

    Darrell Thorp

    9 Grammy Awards (Foo Fighters, Beck, Radiohead, Paul McCartney)

    Great fun in a small box. I love the analog sound and the depth, and the added ability to add harmonic distortion.

  • Daniel Wyatt

    Daniel Wyatt

    Multi-platinum Audio Engineer (Curtis Mayfield, Mos Def, Sugar Ray, The Roots)

    PA is back with another never-been-seen before beauty from the past - and we are going way back here - to the 1930s! Big Al is not a Chicago gangster, but a powerhouse saturator/clipper with heavy… Read More

Customer Reviews

  • Secret weapon!

    by sobrinN
    I love to distort sub basses with this, simply dial back the mix and have an awesome distorted bass, usually works great with sine waves!
  • Excellent and unique!!

    by George G
    As a Neold plugin, it holds a spot in my heart!! It's not as amazing as the Neold compressors but still, it's a unique and very useful tool to have. I particularly like the "emphasis" button, it can… Read More
  • Big Al

    by Mgm
    Outstanding. Possibly one of the most underrated plugins.

    by Buck Down
    this may be one of the best steals on this entire site. My studio template now has this on EVERY channel. Simply put, it breathes 3 dimensional life into anything you try it on.
    A real… Read More
  • Aliasing?

    by Kampa
    Love this to bits but surprised there's no oversampling option followed by a Nyquist filter... hope they add that in a next update so there's no aliasing.


Supported Plugin Formats
AAX Native, AU, AAX AudioSuite, 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.



NEOLD BIG AL - Changelog

- Version 1.3 (Mar 6, 2023)
- Fix for black boxes around the Plugin GUI in VST3 in Cubase on Windows
- Remove 32-Bit support on Windows
- Add double click -> reset to default feature
- Add mouse sensitivity item to main menu

Version 1.2 (Mar 16, 2023)
- Added native Apple Silicon support in AAX

Version 1.1 (Jun 15, 2022)
- Added Apple Silicon support

Version 1.0 (Jan 22, 2021)
- Initial release