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Customer Reviews 242 Reviews

4.87 out of 5 stars

by M. Poncy (12/21/2015):

Fairchild has met all expectations has more color than some other plug-compressors [1176 or LA- ... Read more

214 Reviews
26 Reviews
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Fairchild® 670 Legacy Compressor Plug-In

Exacting Emulation of the ‘Holy Grail’ In Variable Mu/Tube Limiting

In studio gear esoterica, the two-channel Fairchild 670 is the ‘Holy Grail’ of hardware compressors. Universal Audio went to great lengths to capture the unique and sublime sonics of this famous Variable Mu/Tube limiter — while simultaneously eliminating its 65 lb. girth, 14 transformers, 20 vacuum tubes, and $30,000 vintage-market price tag — for our UAD Powered Plug-In version. Modeled on noted engineer/producer Allen Side’s favorite unit from Ocean Way Studios, the Fairchild 670 Legacy plug-in incorporates all of the features from the original unit. Several new UAD-only features round out this offering, giving the Fairchild 670 Legacy Powered Plug-In added flexibility in modern studio settings.

Great efforts were made to capture the unique and sublime sonics of this famous mu-type tube limiter. The UAD Fairchild 670 Legacy adds an auxiliary panel allowing access to rear access controls, common mods, and unique Universal Audio-only additions.



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  • Steve Levine

    (Culture Club, Beach Boys, Ziggy Marley)

    "The much sought after Fairchild 660 and 670 are now accessible to UAD/Apollo users, allowing them to enjoy an audio treat that had previously only been available by a select few artists and producers."

    Ryan West

    (Jay-Z, Kid Cudi, Kanye West)

    "I find that I can use the [UAD Fairchild] 670 plug-in on parallel drum buses in lat/vert mode to enhance the tone, add depth, and control the stereo image in ways that no other plug-in can."

    Darrell Thorp

    (Beck, Radiohead, Charlotte Gainsbourg)

    “Are your drums, bass, guitars, and vocals lacking a little vibe? Grab the new UAD Fairchild 660 or 670, turn the input knob up, watch the meter dance, and listen to how much life your song has now.”

    MusicTech Magazine

    "Although there are plenty of passable emulations available, Universal Audio's skills at analogue modeling are ably demonstrated here, delivering a near-perfect software replica for a fraction of the cost of the original hardware."

    Peter Mokran

    (Christina Aguilera, The Flaming Lips)

    “I'm blown away. [The UAD Fairchild Collection plug-ins] perfectly model not only the compression behavior, but the actual sound. This is a big step forward.”

  • Garrett "Jacknife" Lee

    (R.E.M., The Cars)

    “The UAD Fairchild 670 is beautiful on drum subs, mix buss, and pretty much anything else you can throw at it. It's got a smoothness that's hard to beat.”

    Henry Jackman

    (The Da Vinci Code)

    "The UAD Fairchild compressor, just like the original device, is an absolute winner."

    Paul Moak

    (Third Day, Matthew Mayfield)

    "The mix REALLY came to life when i strapped the Pultec-Pro and the Fairchild [plug-ins] across the bus."

    Eddy Schreyer

    (Oasis Mastering, Prince))

    "[I choose] the Fairchild 670 Compressor for its clean, controlled compression."

    Aziz Ibrahim

    (Simply Red, The Stone Roses)

    "The Neve 33609 & Fairchild 670 compressor plug-ins are my favorites. They really seem to fix things for me."

  • Henry Jackman

    (The Da Vinci Code)

    "The UAD Fairchild compressor, just like the original device, is an absolute winner."

    Frank Filipetti

    (James Taylor, Rod Stewart)

    "Compared to the Waves & Bomb Factory emulations, it's [UAD Fairchild 670 plug] in a whole 'nuther league."

    Jim Dalrymple

    (The Loop)

    "[I use] the Fairchild Compressor, Neve 1081, Neve 1073, LA-2A and the 1176 Compressor. They all give you something different."

    Matt Knobel

    (Lenny Kravitz)

    "With the others, you have to work all day ... With the UAD, you put it on and it sounds like a Fairchild."

    Matt Knobel

    (Lenny Kravitz)

    "With the UAD-2 , you put it on and it sounds like a Fairchild. It makes it so much easier to get what you're looking for."

User Ratings

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Average Rating (242 Reviews)
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    Great tool for specific sources
    by M. Poncy (Monday 17 December, 2012)

    Fairchild has met all expectations has more color than some other plug-compressors [1176 or LA-2], so it either works or it doesn't depending on source. Really shines on upper piano, helping to square it in the mix. Also livens up voiceovers. Another great plug! Thanks UA! … Read More

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    by D. Owens (Sunday 4 December, 2011)

    A very good plugin on a variety of sources. I use it most on acoustic guitar and kick drum. It stays on kick almost all the time, because it really gives the kick some thump, if you adjust the DC bias properly. This used to be my go-to drum buss compressor, because it can have a lot of flavor and ag … Read More

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    by R. Stubbe (Thursday 13 October, 2011)

    It might sound strange but i only use this comp when i want more loudness. It's probably not fair because it can do a lot more. It's just that i personally love it for that quality. And i have other compressors i can use to reduce peaks. The sound is so familliar, i feel like a pro just by turning … Read More

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    The Glue Factory
    by A. Dowling (Tuesday 12 February, 2013)

    A number of years ago, I spent time with the UAD-1 platform while recording and mixing an album. At that time, I recall being shocked at the quality of the Fairchild plugin, the distinct character it imparted, and the fluid restraint it could give to a drum or stereo buss. I have recently added the … Read More

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    by R. Campbell (Wednesday 18 July, 2012)

    Engineer's and mixers want tools that will enhance& transform their audio to the next level. The Fairchild 670 offers vintage compression that brings new life to whatever signal it touches. It's a mainstay on my vocal channel, really makes them stand-out in a mix like no other. If you want to make i … Read More

  • Dave Tozer

    Here, Dave Tozer details how you can synthesize a powerful UAD/Logic Pro X production workflow. Read More

    Tom Salta

    Renowned video game composer Tom Salta details how he uses UAD plug-ins to craft award-winning scores. Read More

    Vampire Weekend Production Goes Mobile with Apollo

    Ariel Rechtshaid and Rostam Batmanglij produced Vampire Weekend's latest album with Apollo and UAD-2. Read More

  • Ryan Hewitt

    In this UA Artist Tips & Tricks video, Ryan Hewitt demonstrates how he used UAD Powered Plug-In favorites on The Avett Brothers' latest album. Read More

    Capturing '60s Soul with UAD Plug-Ins

    Learn how Culture Club producer Steve Levine used UAD Powered Plug-ins to recreate the classic sound of 1960s soul. Read More

    Producer/Engineer Billy Bush Mixes Garbage

    Bush uses UA tools extensively while sculpting the band’s edgy guitars, driving percussion grooves, and glistening electronics. Read More

  • Tony Maserati

    Tony Maserati’s renowned chops has had him mixing everyone from Lady Gaga, Sting, and Mariah Carey, to The Notorious B.I.G. and Alicia Keys… Read More

    Paul Epworth

    Epworth on producing Adele's Grammy-winning album, her all-UA vocal chain, and his unique production aesthetic. Read More

    Thievery Corporation's Chris “Stone” Garrett on UA

    Chris Garrett mixes and engineers Thievery Corporation's spacious organic elements and electronic grooves. Read More

  • Jacknife Lee

    An Irish musician, remixer, producer, and engineer, Jacknife Lee has worked with legendary rock bands... Read More

    Michael Brauer

    Michael Brauer has enjoyed an illustrious 30-year music career, mixing chart-topping albums by artists including Aretha Franklin and The Rolling Stones. Read More

    Josh One & Ian Boxill

    DJ/Producer Josh One and engineer Ian Boxill walk us through their grooving, slickly-produced new single, "After It," featuring Julie Walehwa. Read More

Features & Specs

Fairchild® 670 Legacy Compressor Plug-In


  • Modeled after Ocean Way’s famous golden unit
  • Sidechain Link for stereo operation
  • DC bias controls compression ratio and knee
  • Six attack and release time constants
  • Lateral-Vertical mode for vinyl mastering and stereo imaging effects
  • Separate mono version of 670 compressor for mono tracks
  • Input and Output metering
  • Final Output Gain
  • Controls Link which couples dual controls
  • Requires a UAD DSP Accelerator Card or Apollo Interface available from authorized dealers worldwide

See the UAD Instance Chart here


UAD Plug-Ins Manual

UAD System Manual

Apollo Software Manual

UA Product Catalog.pdf