A next-generation reverb that’s creative and clean
Unfiltered Audio joined forces with superstar producer BT to create a reverb that provides unparalleled consonance and harmonicity. Thanks to its “polytonal dual buffer” and auto-ducking capabilities, TAILS automatically removes dissonances and transients from your reverb tails, keeping your decays as clean and impressive as possible.

Unique filter capabilities
TAILS analyzes incoming audio, listening for major transients and note changes. Whenever its threshold is met, the reverb instantly ducks and switches over to an empty reverb buffer, which blooms rapidly. This results in a clean reverb decay free of dissonance from metallic hits and out-of-key notes. It can even pre-duck incoming transients to keep them from ever cluttering up your reverb to begin with, providing a tail that’s unusually smooth.

Four reverb engines in one
TAILS features multiple reverb engines for even more creative choices, including the beautiful new SHIMMER mode, tuned to BT’s exacting tastes. Also on board are the classic DEEP and RENOUN modes found in BYOME, and the surreal SPATIAL mode from SILO.

Powerful enough for the studio, CPU efficient enough for live performance Even with all of these wild features, TAILS is the perfect workhorse reverb. With less than 1% CPU usage on an M1 MacBook Air, you'll be able to add Tails to any track without worrying about it. Advanced MIDI integration allows you to use note messages to mute the buffer for rhythmic interest and precise editing, and to create unique performance opportunities with the Mod and Pitch Wheels.


  • Endlessly clean and creative reverb developed by Unfiltered Audio and BT.
  • Polytonal, dual-buffer reverb provides maximum harmonicity and consonance.
  • Auto-ducking feature preemptively removes transients from the reverb tail.
  • Four unique reverb algorithms: DEEP, RENOUN, SPATIAL, and the new “SHIMMER” mode.
  • Shockingly low CPU load allows it to be inserted across multiple tracks with ease.
  • Advanced MIDI integration allows you to perform unique control changes, warping your reverb in real time.

Audio Examples

Industry Reviews

  • MACK


    Producer, Artist, Engineer, Multi-Instrumentalist, Singer, Songwriter

    Honestly I couldn’t stop playing with Tails. Just when I thought I heard all it could do, I’d slap it onto another instrument and get a completely different set of sounds. It only gives a… Read More

  • Jody Wisternoff

    Jody Wisternoff

    DJ, Producer (Way Out West)

    BT seems to have created a plugin I didn't even know I needed, but now can't live without ! Come to think of it, the  smearing of reverb tails when it comes to heavily harmonic content has at… Read More

  • Rafael

    Rafael "Anthem" Brown

    Producer, Mixing Engineer & Sound Designer (Kanye West, Nas, Big Sean)

    BT Tails is one of the dopest sound Design plugins I've ever used, it instantly inspires me to create new ideas.

  • Koen Heldens

    Koen Heldens

    Mixing Engineer (XXXTentacion, Trippie Redd, Swae Lee)

    This reverb is amazing! It embodies everything I’ve been seeking in a reverb for years! Clean tails, auto ducking and no washed up splashes. Reverb as it supposed to be, a paint brush in the… Read More

  • Alex M.O.R.P.H

    Alex M.O.R.P.H

    DJ, Producer (Paul van Dyk, Within Temptation, Faithless)

    In 2022 , the revolution of the REVERB…I usually need to chain 2 or 3 Plugin‘s to create sort of an endless reverb effect , with „Tails“ i get this result in 3 mouse-clicks and a little… Read More

Customer Reviews

  • ★★★★★
    by L.R
    Absolutely amazing and that’s all I’m going to say!
  • Tails love

    by Lynn
  • Absolutely Amazing

    by ChroPh0re
    Soooo I've kinda sorta bought almost every single Unfiltered Audio plugin, and this one is by far one of the best sounding reverbs I've ever found. The controls are a tad different from some standard… Read More
  • special..

    by Synthitize
    This plugin is interesting to add non-ordinary effects on sun instruments or drums. The surprising result allows you to differentiate a sound or improve it with this special reverb
  • Will get a lot of use

    by MS
    Has very nice sounds and the ability to control the buffer resets so you can keep the notes in the tail the way you want them is great. The ducking feature adds yet another way to keep the tail free… Read More


Supported Plugin Formats
AAX Native, AU, VST2, VST3

Supported Operating Systems
macOS 14 down to macOS 11
Windows 11 down to Windows 10

Intel or Apple Silicon architecture

x64-compatible CPU

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM




With the Installation Manager you can select, download & install all the Plugin Alliance products. Select any and all formats you need for your system! Mac & PC.



Unfiltered Audio Tails - Changelog

Version 1.1.0 (Apr 03, 2023)
- Critical fix for Spatial Reverb mode producing silence.

Version 1.0.9 (Mar 16, 2023)
- Add AAX ARM support for Apple Silicon.

Version 1.0.8 (Mar 01, 2023)
- Fix for latency reporting causing issues with Cubase bypass.

Version 1.0.7 (Feb 01, 2023)
- Fix DAW handling of presets in VST3.

Version 1.0.6 (Dec 14, 2022)
- Add a menu for selecting the latency required for Tails. This affects the lookahead of the Ducking compressors and will change the behavior of that section. Leave Full Latency enabled to keep old projects sounding the same.
- Greatly improve graphics rendering performance.
- Add an additional latency report to the DAW at initialization.
- Fix crashing in certain DAWs when loading multiple instances.
- Fix potential crash in certain DAWs when changing the sampling rate of a project.

Version 1.0.5
- First iOS release.

Version 1.0.4 (Aug 26, 2022)
- Fix offline automation rendering on fast computers.

Version 1.0.3 (Jul 14, 2022)
- In mono-to-stereo mode, the dry signal was only appearing on one channel.

Version 1.0.2 (Mar 29, 2022)
- First public release.