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Customer Reviews 119 Reviews

4.7 out of 5 stars

by A. Tarasenko (1/22/2014):

Works perfect on everything, excepts drums, or any transient instruments. Kills the sound of it ... Read more

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Overview

Precision K-Stereo Ambience Recovery Plug-In

Key Features

  • Unique ambience recovery and stereo processing tool, created and patented by famed mastering engineer Bob Katz
  • Extracts ambient cues from the source material, naturally adding depth and width to the stereo field
  • Perfect for fixing busy or “narrow” mixes at the mastering stage
  • 3-band Ambience Filter EQ for further shaping the effect
  • Mid/Side gain controls adjust the center-to-side balance
  • Left/Right Gain controls for final stereo image balancing and leveling
  • Custom user presets created by Bob Katz
  • Requires a UAD-2 DSP Accelerator or Apollo interface

Read full features & specs

Say goodbye to “narrow” mixes. Recover and boost the natural ambience of recorded sources.

Universal Audio’s Precision K-Stereo™ Ambience Recovery plug-in is a psychoacoustic processor created for the UAD platform with famed mastering engineer Bob Katz. Offering a unique, patented process, the K-Stereo Ambience Recovery plug-in extracts the ambient cues from source recordings — allowing you to precisely enhance the stereo depth and imaging of mixes without artifacts. Designed for critical 2-track mastering applications, from jazz to rock to hip-hop, the K-Stereo plug-in is the 100% natural-sounding cure for busy or narrow-sounding mixes.

Watch the overview video.

Background
The K-Stereo Ambience Recovery process uses elements of the Haas effect and other psychoacoustic principles to create a transparent, phase-accurate “ambience recovery” and stereo enhancement tool. This plug-in does not have a sound of its own; instead, it transparently enhances the existing ambience and early reflections of your source material — increasing the “third dimension” of the recorded sound. Add depth and imaging to the instruments and vocals on your stereo master, without adding artificial reverb or changing the ratio of center elements to side elements — thus providing a “do-no-harm” approach to finalizing the stereo image.

Parameters
The K-Stereo’s Ambience section is the heart of the plug-in. Dial in the Recovery amount that suits your track, while using “Deep” and “Wide” for additional enhancement of the stereo field. Use the Recover switch to disable and enable Ambience Recovery, auditioning the K-Stereo process against the original sound as you go. A three-band Ambience Filter section allows fine tuning of the effect, while Mid/Side Gain controls let you adjust center-to-side balance. Lastly, Left/Right Gain controls are available for final stereo image balancing and leveling.

In Use
The primary use for the K-Stereo Ambience Recovery plug-in is in mastering or post-production, especially where improvements in stereo width and depth are desired. You can start with default settings and adjust the K-Stereo’s parameters to taste, or use the array of presets specially designed by Bob Katz. The K-Stereo plug-in is also useful during mixing, enhancing stereo sources within a mix, such as drum groups, acoustic piano, vocal groups, or other sub-mixes. With its flexible parameters, the K- Stereo plug-in also excels at creating a  natural stereo soundstage from a mono source.

$119.00
$199.00

Reviews

Reviews

  • Bob Katz

    "I designed the K-Stereo to be so natural and transparent, that it fits right in with the producer's intent. When I use it, it's usually for that final, subtle polish. But feel free to kick it up higher if that's what your project needs!"

    Computer Music Magazine

    "As stereo enhancement plug-ins go, the Precision K-Stereo is certainly up there with the best... It can pull a stereo master into clear, cohesive focus, precisely gluing together those all-important musical interrelations."

    Frank Filipetti

    (James Taylor, Rod Stewart)

    “The [UAD] Precision-K has added a whole new dimension to my mixes…literally. Everything is more 3D. Coupled with the [UAD] Brainworx EQ plug-in on my mix buss, I can hear more front to back.”

    Valentin

    (Christina Aguilera, Natasha Bedingfield)

    “I've used a number of stereo widening plug-ins before but nothing like this. The [UAD Precision] K-Stereo plug-in allows you to really adjust the depth and width with completely musical results.”

    Mark Needham

    (The Killers, Neon Trees, P!nk)

    “The [Precision K-Stereo] ambiance recovery plug-in’s ability to widen an image without the typical phasing in this process has won me over.”

User Ratings

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Average Rating (119 Reviews)
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    Good, but not enough
    by A. Tarasenko (Wednesday 22 January, 2014)

    Works perfect on everything, excepts drums, or any transient instruments. Kills the sound of it. So it's useless for mastering. On vocals, synths or anything else it's perfect. … Read More

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    Test this thoroughly before buying and check under headphones.
    by C. Meyer (Tuesday 7 January, 2014)

    Not sure about this, really. I bought it because I initially liked the effect on busses or the mastering chain. Though, the more I use it the more I tend to leave it off after A/B-ing. It certainly does give wideness and a sort of depth perception, but it also changes a carefully crafted mix to a d … Read More

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    number one!!!
    by S. Datskevich (Thursday 26 December, 2013)

    is widely regarded as one of the most relevant for me to work on mastering plugins. I watched for a long time and experimented with this plugin. now bought. and none of the songs from my studio is complete without a K-Stereo Ambience Recovery Plug-In! Thanks Bob Katz!) UAD thanks!) believe in YOU! H … Read More

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    Another UA plug I didn't know I needed...
    by J. Moreland (Monday 6 May, 2013)

    When I was in college (20 years ago), I attended a lecture with engineer Francis Buckley, who said that he has never and would never run a signal through a piece of gear which processed a signal in a way he couldn't easily explain to someone or at least that he understood completely… yeah, to hell … Read More

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    k-stereo
    by B. Rothauer (Tuesday 8 January, 2013)

    a really senseful Plug-In! It gives you the possibility to work with the space and the stereo-soundstage - and we all know that Bob Katz knows what he's doing :-) I liked it immediately, thanks for the evaluation! Bernie, obaxe-music, austria … Read More

$119.00
$199.00

Artists
  • Joel Hamilton Mixes Pretty Lights with UAD-2 Power

    Joel Hamilton details how he used UAD plug-ins to craft Pretty Lights' Grammy-nominated album, A Color Map of the Sun. Read More

$119.00
$199.00

Features & Specs

Features

  • Unique ambience recovery and stereo processing tool, created and patented by famed mastering engineer Bob Katz
  • Extracts ambient cues from the source material, naturally adding depth and width to the stereo field
  • Perfect for fixing busy or “narrow” mixes at the mastering stage
  • 3-band Ambience Filter EQ for further shaping the effect
  • Mid/Side gain controls adjust the center-to-side balance
  • Left/Right Gain controls for final stereo image balancing and leveling
  • Custom user presets created by Bob Katz
  • Requires UAD-2 DSP Accelerator Card or Apollo Interface, available from authorized dealers worldwide

See the UAD Instance Chart here

Parameter Specifications

Ambience Section

  • Ambience Recover: Off/On enables entire ambience recovery section
  • Ambience Gain: -20 to +9 dB available in 0.5 dB steps sets level of the ambient signal
  • Enhance Deep: Off/On enables the deepest ambient recovery enhancement
  • Enhance Wide: Off/On enables the widest ambient field, extending to beyond the stereo speakers

Ambience EQ Section

  • Ambience Filters EQ: Off/On enables a three-band filter to equalize the ambient signal
  • Ambience Low Cut: Continuous 20 Hz to 1 kHz 12 dB per octave filter with Off/band bypass
  • Ambience Bell Frequency: Continuous 50 Hz to 10 kHz frequency selection
  • Ambience Bell Q (bandwidth): Continuous 0.5 to 3 octave range
  • Ambience Bell Gain: Continuous ±10 dB range with RTZ (return to zero) reset when Gain label is clicked
  • Ambience Hi Cut: Continuous 5 kHz to 20 kHz 12 dB per octave filter with Off/band bypass

M/S Gain Section

  • M/S Gain: Off/On for adjusting Mid and Side gain components
  • Mid Gain: -12 to +6 dB available in 0.1 dB steps with RTZ (return to zero) reset when Mid label is clicked
  • Side Gain: -12 to +6 dB available in 0.1 dB steps with RTZ (return to zero) reset when Side label is clicked

L/R Gain Section

  • L/R Gain: Off/On for gain matching or fine-tuning the interchannel balance
  • Left Gain: -24 to +12 dB available in 0.1 dB steps with RTZ (return to zero) reset when Left label is clicked
  • Right Gain: -24 to +12 dB available in 0.1 dB steps with RTZ (return to zero) reset when Right label is clicked
  • L/R Link: Off/On enables linking for Left/Right gain components for fine-tuning interchannel balance.
  • LED ladder meter: displays final peak output metering with 3 second hold
  • Power: Off/On enables plug-in processing
$119.00
$199.00

Docs

UAD Plug-Ins Manual

UAD System Manual

Apollo Software Manual

UA Product Catalog.pdf

$119.00
$199.00