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Get the rich sound of magnetic tape, class A transformers, and tube circuits.

Able to warmly burnish frequencies and transients, or crush them with thick saturation, the FATSO Jr./Sr. Tape Sim. & Compressor plug-in for UAD-2 hardware and Apollo interfaces exhaustively emulates the iconic, industry standard Empirical Labs hardware.

Used by legendary engineers Ed Cherney, Al Schmitt, and Brendan O'Brien, the FATSO can also increase the apparent volume of your source material. The FATSO plug-in is officially endorsed and scrutinized for accuracy by its designer, Dave Derr.

Inject your tracks and mixes with the warm, musical qualities of magnetic tape, tubes, and class A transformers

Lightly color, or destroy, drums, vocals, and more with tube and tape saturation

Harness “plug-in only” Tranny Saturation, Sidechain Filtering, and Stereo/Mono controls

Dial-in a wealth of analog textures with Warmth and Spank controls

Powered Plug-In Overview
Powered Plug-In Overview

Powered Plug-In Overview

FATSO Jr./Sr. Tape Sim. & Compressor plug-in

Go From Tame — to Trashed

Go From Tame — to Trashed

The FATSO plug-in offers a wide palette of possibilities for adding fat analog character and cohesiveness to your DAW tracks. It’s also a creative tool, able to add varying degrees of saturation — from subtle to severe — on any source. The FATSO's Input control lets you dial in shades of harmonic generation and distortion, while the Tranny and Warmth features provide varying amounts of of tape and tube tone.

Plug-In Only Features

Plug-In Only Features

The FATSO plug-in’s versatility is greatly expanded with the addition of Dave Derr's custom mods. The FATSO Sr. offers a “Tranny” saturation control, Sidechain Filtering and deeper compression parameters including Threshold, Attack and Release. These special FATSO Sr. mods are only available with the UAD Powered Plug-In version of this essential studio tool.

Key Features

Recreates the warm, musical qualities of magnetic recording tape, tubes, and class A transformers

Licensed and endorsed by Empirical Labs, created by Universal Audio

Clipping, Warmth, Tranny, and Compression Select allow for a wide variety of analog tonal shaping possibilities

Additional UAD plug-in exclusive, FATSO Sr., provides original concept developed by Empirical Labs’ Dave Derr

FATSO Sr. features include Tranny Saturation, Sidechain Filtering plus Threshold, Attack, and Release

Stereo or Mono operation with independent Left/Right controls

Customer Reviews

FATSO™ Jr./Sr. Tape Sim. & Compressor

Overall Rating

A. Schwartz

September 18, 2022

Has A Special “Something”

I used to have a hardware fatso jr. I listened to acoustic guitar tracks I’d done with it, & bought the UAD version. Sounds great. Warm, fat, sweet compression that I haven’t gotten from anything else.

G. Fricke

September 9, 2022

G. Fricke

A must in the signal chain. It really improves vocals.

T. Basso

August 30, 2022

Great plugin

Congratulations for the excellent work

F. Maraschin

August 23, 2022

The best

Perfect plugin, sound amazing but needs a graphic update in order to enlarge the window

M. Hui

July 30, 2022

Great Plugin

Really adds a warmth.

A. Smith

July 28, 2022

Great on drums

Mainly bought this to add fatness to my drums, would recommend!

I. Kravchenko

July 14, 2022

Excellent!

I didn't realize I needed it. I use it whenever I want to fatten up any source or bus. I use it both to add saturation, and also as a compressor. Love it.

F. Guerrero Miranda

June 22, 2022

Fatso Excellent


A great complement to give a great color to the tracks.

J. Manness

June 14, 2022

Incredible tone!

I tried a real FATSO at NAMM and the tone it adds to any source or mix is incredible. I do hope UA updates the plugin like they did with the Distressor, but don't let that stop you from using this while tracking or throwing on an entire mix.

M. Sääf

April 27, 2022

Best crush plugin!

After seen Vance Powell and Scheps use this I finally got to try it out myself, now I can't stop using it!

M. J

April 18, 2022

Fat Indeed

Great on low end material. Appreciate software only addition. Essential

V. Baranov

February 17, 2022

SUPER FATSO

If you want to highlight vocals or drums, then FATSO is the best plugin!!! I recommend it!

e. tiberi

February 8, 2022

Sounds exactly how it should

Everything sounds better with a lil fatso on top

J. Morrison

January 13, 2022

Fat!

Does what it says on the tin, makes stuff fatter! Awesome!

D. Chin-Sang

December 27, 2021

FATSO

Not as close as the distressor is to the real thing but still pretty good. Can’t go wrong with Empirical Labs emulations from UAD.

J. Pevar

December 20, 2021

Review

Fat!!! Wahoo! Every time I get a new UAD plug it’s my current favorite! The hits just keep on coming!

J. Neves

December 17, 2021

Very DSP Hungry.....

...specially on stereo track but worth every penny nonetheless! What a great plugin this is, very unique sounding.

h. ilhan

December 11, 2021

fixer

a must have plugin for any amp simulater or harsh material

P. Motyczak

November 7, 2021

FATSO for all

Great! Goes for drums, bass, guitars, everything, even the mixbus ! Love it for parallel compression. Quite heavy on cpu though but it’s worth it.

M. O'Brien

October 26, 2021

This is really good!

Very expensive on DSP so I only use it when I have to. This might be the best plugin UAD do!