Emperical Labs FATSO Tape Simulator

Emperical Labs FATSO Tape Simulator is a tape saturation and compression plugin from Universal Audio that combines tape warmth, four compressor modes and high-frequency smoothing in one set of controls.

VST3AUAAXWindowsmacOS64-bit

AVAILABLE ATPlugin Boutique

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01Overview

The FATSO Tape Simulator is built to add warmth, density and control to a mix in one stage. It puts tape saturation, compression and high-frequency smoothing under a single set of knobs, so a producer can run drums, bass, vocals or a full bus through one processor. Universal Audio distributes the plugin, which is developed with FATSO designer Dave Derr. The result is a tool for shaping color and dynamics rather than a general-purpose mixing utility.

Best for

Drum bus saturation
Bass warmth on small speakers
Vocal color and warmth
Mix bus glue
Heavy drum distortion

Developer: Universal Audio
Category: Tape Emulation
Store: Plugin Boutique

02Key features

What you get

Tape saturation and high-frequency smoothing in one plugin
Four compression modes: Buss, G.P., Tracking and Spank
Two versions: FATSO Jr for iconic tones, FATSO Sr for deeper compression
Sidechain filtering for compression control
Variable transformer saturation for adjustable harmonic color
Deeper compression parameters beyond the original hardware
Input drive from subtle clipping to heavy distortion

03In depth

Tape Saturation and Compression Modes

The plugin combines tape saturation with compression in one processor. Input drive is the main control for character. A moderate setting softly clips peaks and adds harmonics, while pushing past the pinned LED produces heavy, crushed distortion. Transformer and Warmth circuits blend in tape tone.

Four compression modes are included: Buss, a gentle 2:1 ratio with a soft knee for mix glue; G.P., a steady-level compressor; Tracking, an 1176-style compressor for vocals and instruments; and Spank, a limiter that recreates the squeeze of ’70s SSL talkback compressors.

Two Versions and Advanced Controls

FATSO Jr provides the signature tones with a simpler interface. FATSO Sr offers deeper compression control. Both share the same tape and saturation character.

The plugin also includes sidechain filtering, variable transformer saturation and extended compression parameters, which are features that go beyond the original hardware.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Universal Audio
Type	Plugin
Category	Tape Emulation
Formats	VST3, AU, AAX
Operating systems	Windows, macOS
Architecture	64-bit

05FAQ

Questions, answered

What formats does FATSO Tape Simulator support?

FATSO Tape Simulator is available in VST3, AU and AAX formats.

Which operating systems can run FATSO?

The plugin runs on Windows and macOS. Windows 10 or Windows 11 (64-bit) and macOS Big Sur 11 through Tahoe 26 are supported, on Intel, AMD or Apple silicon processors.

What do I need to use FATSO Tape Simulator?

You need a supported DAW compatible with VST3, AU or AAX, an internet connection to download and authorize UAD Native plug-ins, and a free iLok account. A free UA Connect application manages the plug-ins. An iLok USB key is compatible but not required.