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  • Overview
  • Features
  • Customer Reviews
  • 4.9/5
    (414)
$199.00
4.9/5
(414)

The only AKG-licensed emulation of this one-of-a-kind spring reverb.

Introduced in the late 1960s, the AKG BX 20 reverb was a high-water mark for AKG’s esteemed engineers. An ingenious assembly of mechanical and electronic componentry, the BX 20 offered the glorious depth and color of spring reverb without any of the limitations.

The AKG BX 20 Spring Reverb plug-in for UAD-2 hardware and Apollo interfaces is exclusively endorsed by AKG Acoustics, Austria and envelops your sources in gorgeously dark, dense ambience that only spring reverb can provide.

Mix with the only licensed and endorsed AKG Acoustics BX 20 reverb plug-in

Envelop instruments in dark, dense, clear ambience with original dual spring tank configuration

Harness new "plug-in only" features like stereoized A/B Tank Select, Direct signal defeat, and BX 10 Tone controls

Mix with artist presets from Patrick Carney (The Black Keys), Vance Powell (Jack White), and Jacquire King (Kings of Leon)

Take a Listen

Take a Listen
5-Minute UAD Tips
5-Minute UAD Tips

5-Minute UAD Tips

Featuring the AKG BX 20 Spring Reverb.

Unparalleled Density

Unparalleled Density

The AKG BX 20's utterly unique character makes it a versatile tool for ambience as well as tone shaping. Its sonic personality features the quick onset of a classic plate reverb, and also the natural-sounding density and diffusion of a chamber — with little of the flutter or “boing” artifacts common with other spring reverbs. Unlike other spring reverb emulations, Universal Audio's hybrid delay network/convolution design provides the only plug-in representation of this mechanically controllable, acoustic ambience system. To that end, UA obsessively emulated a “golden unit” BX 20 from legendary producer, Jon Brion.

Spring Time

Spring Time

The BX 20 plug-in expertly captures the hardware’s unique two-stage decay. This yields warm, organic sounds whether it’s applied on percussion, vocals, or guitars, adding a unique timbre that can make individual tracks stand out — or melt away — in your mix. Short textures are chock full of colorful depth and dimension, while longer decays are rife with lush three-dimensionality, while never washing out.

New Features, More Control

New Features, More Control

The BX 20 plug-in provides the complete sound and features of the original, plus new "Mk II" features for an expanded sound palette. Tank Select provides the exact sound of the original A/B dual tank system, but includes a “stereoized” tank A or tank B, for more balanced stereo imaging. The Direct function allows you to mute the tank's direct signal for more control and minimizing conflict with the source audio — perfect for buses. The Baxandall-type tone controls — borrowed from the smaller AKG BX 10 — offers the last bit of seasoning to tailor your reverbs.

Watch The Reviews

      Parameters

      Input Select, Mono/Stereo: Changes input between summed mono or stereo
      Tank Select, A / B / A+B: Under stereo use, changes tank options among stereoized "A" and "B" and original "A+B" configurations
      Direct, Off / On: Disables/enables the spring tank's naturally occurring direct sound component
      Low Cut, Off / 80 Hz: 12 dB per octave, 80 Hz filter
      Bass, ±10: Continuous tone control borrowed from the AKG BX 10, ±8 dB at 150 Hz
      Treble, ±10: Continuous tone control borrowed from the AKG BX 10 ±4 dB at 5 kHz
      Dry/Wet, 0 to 100%: Continuously adjusts Dry and Wet signals under insert use case
      Wet Solo, Off/On: Disables/enables Wet Solo function
      Predelay, 0 to 250 milliseconds: Continuously adjusts Predelay amount
      Channel 1 Decay, 2 to 4.5 seconds: Continuously adjusts Channel 1 Decay time
      Channel 2 Decay, 2 to 4.5 seconds: Continuously adjusts Channel 2 Decay time
      Channel 1 Volume, ∞ to +24 dB: Continuously adjusts Channel 1 Volume
      Channel 2 Volume, ∞ to +24 dB: Continuously adjusts Channel 2 Volume
      Channel 1 Pan, ±100: Continuously adjusts Channel 1 Pan
      Channel 2 Pan, ±100: Continuously adjusts Channel 2 Pan
      Link, Unlinks/Link: Unlinks/Links Decay, Volume and Pan parameters
      Mix: Continuously blends processed and unprocessed signal
      Power, Off/On: Disables/Enables plug-in (all DSP processing is bypassed)

      Customer Reviews

      AKG BX 20 Spring Reverb

      Overall Rating

      4.9/5
      (414)

      O. Morris

      December 14, 2018

      AKG BX 20 REVERB

      lush sounding reverb i start out with a preset as a starting point and then craft my sound. This plug in is a swiss army knife of reverbs

      D. Blackett

      December 13, 2018

      Rich and dark

      My favourite reverb plugin. The way it catches on the right harmonics and beds in the track is beautiful

      D. Blackett

      December 13, 2018

      Rich and dark

      My favourite reverb plugin. The way it catches on the right harmonics and beds in the track is beautiful

      M. Kourilov

      December 13, 2018

      Great Unique Reverb AKG bx 20

      Well... what can I say? One of the must have reverbs. Beautiful, smooth, really helps to keep the vocals sit nice in a mix. To be ownest it just saved my arse with the latest track that I worked on. The singer wasn’t as good as I wish her to be so I just add that reverb and it smooths all the issues with her singing. Bravo UA

      N. Ben Shabat

      December 11, 2018

      sounds very good! but.

      hard to hear the springs and the shortest delay time is very long so it's hard to fit that into a mix

      M. Ottavi

      December 9, 2018

      Beautiful reverb

      Epic reverb !!! It’s amazing to play with it and explore the settings . The sound of it is awesome !

      D. Fleming

      December 7, 2018

      Beautiful reverb

      Sounds great on guitars and synths. My favourite reverb is the EMT 140 but this is a close second!

      L. REBOLA

      November 13, 2018

      Great reverb

      Unique character and los of settings.

      T. Peters

      November 13, 2018

      Just Amazing.

      I bought this to track some washy guitars in real time with my Apollo.

      I think it might be the best sounding reverb I've ever heard in the box.

      Its quite sensitive to input levels but so detailed its unreal. Not for everything but if you track live instruments its the one!

      A. Avelin

      September 19, 2018

      Lush

      It's amazing! Still my favorite reverb almost a year after purchase!

      A. Araujo Cunha

      September 18, 2018

      Amazing Reverb

      This is one of the most gorgeous reverb I have used, so smooth, but remember to use it carefully otherwise your mix will suck.

      j. Rodriguez

      August 25, 2018

      Grate Amazing !

      I just used the plugin literally about 30 min.
      I use the hardware every day and it's so close!
      It's amazing literally is like the hardware with more controls it's a must!
      incredible!

      G. Petel

      August 7, 2018

      Probably the best spring ever

      Sounds amazing on guitars and drums

      .

      July 23, 2018

      DEVOURS PGM/MEM Resources

      What good is something that sounds as good as the AKG BX20 if you can't ever use it? I won't argue with its sound quality, but it is the FIRST thing that eats up my PRM/MEM resources after i spend all the time getting the sound I want. For tracking, fine, whatever, but it just loads in a really horrible way. I love a sound I can never use, which is almost worse than "i'll do the best with what this can do"..

      R. Alvarez-Torre

      July 22, 2018

      Excellent reverb!

      I’ve been using this in my aux insert for my blues guitar playing and it sounds so authentic.

      C. Bell

      July 17, 2018

      Great Verb

      One of the best spring reverb plugins I have heard if not one of the best reverbs.

      .

      July 2, 2018

      Very Nice

      Completing the UAD reverb collection with this one

      S. Rehbein

      July 2, 2018

      Lush and creamy

      Best spring reverb plugin, very 3d and easy to dial without the noises of the hardware. It would be nice to have shorter decay times. Great Job!

      G. Westwood

      June 26, 2018

      Wow what a sound!!

      Lush spring reverb that creates the space you need in a mix.
      Amazing on guitar and just as good on vocals

      Y. Rotem

      June 25, 2018

      best reverb ever

      This reverb is so deep and 3D. Amazing on just about any source. Sounds just like the real thing