Note: This page will be updated in the future when new information becomes available. Last update 04.02.2021

Warning: A major design flaw in Dirac Live Bass Control has been discovered. Don't use Bass Control for now. Use "regular" Dirac Live or "Upmix Only" instead. You can read more about it at

Dirac Live 2

After a lengthy development process and missed launch in Q1 2018, Dirac Live 2.1 has finally been released on 23.11.2018. It features a completely new user interface while no major new features – like simplified test signal/mic level setting, automated crossover selection or crossover splice optimization – have been added. Some major bugs from version 1 still exist in version 2, e.g. wrong speaker distance detection of upward firing Dolby enabled speakers. Some new bugs have been introduced.

Dirac Live is first and foremost a tool for automated room correction, so user experience and user interface should be paramount. Unfortunately Dirac Research chose to prioritize cross-platform support and looks over functionality. While beauty certainly lies in the eye of the beholder, a software user interface also has objective functional aspects ("Design is not just what it looks like and feels like. Design is how it works." – Steve Jobs). Here Dirac Live 2 shows a strange tendency to favor decorative/less important elements while functional user interface elements are non-native, dimmed down, hidden, unreadable or even missing. As a result some tasks are actually harder to accomplish than in version 1. Some features have even been crippled (e.g. test signal/mic gain adjustment) which makes Dirac Live 2 less useful to the user.

Good news is that Dirac Live 2 is available as a free upgrade to existing users. See

Version 2.1.1 has been released on 10.12.2018 with usability improvements and bug fixes but generally all of the above still applies.

Version 2.1.2 has been released on 21.12.2018 with usability improvements and bug fixes but generally all of the above still applies.

Version 2.2.0 has been released on 26.02.2019 which finally provides a way of getting test signal and mic input level right.

Version 2.2.1 to 2.3 has been released during 2019 with usability improvements and bug fixes but some fundamental issues are still unresolved.

Version 2.4 has been released on 07.02.2020 with usability improvements and bug fixes but generally all of the above still applies.

Version 2.5.2 has been released on 08.04.2020 fixing a severe bug in the gain compensation algorithm. Earlier versions should not be used. This is the first version that can be considered ready for prime time since its first public release in 2018. It still can't handle upfiring Dolby Atmos enabled speakers though...

Dirac Live 3

Version 3 has been released on 03.06.2020. The user interface is virtually the same as in version 2 but it comes with a new feature, "Bass Control" (although technically "Bass Control" was already available in 2.5.x). "Bass Control" encompasses a number of tools for optimizing the crossover region between sub(s)/sats and seat to seat differences when using multiple subs.

"Bass Control" requires the AVR/P to run Dirac's own bass management DSP code. If the hardware supports it additional controls become available in the Dirac Live app.

Maybe there has been a hiccup in Google Translator from Swedish to English but the additional features couldn't be named in a more obscure and counterintuitive way. Here's a brief explanation what each button does:

There's a number of issues with version 3 besides what already has been posted at the end of this page:

If you're using Dirac Live "Bass Control", make sure you're running version 3.0.2 or higher as there has been a bug which made the crossover region worse instead of making it better.

Latest changes can be found in the Dirac Live changelog.

How-to guides for Dirac Live 2/3

Target Curves for Dirac Live 2/3

Dirac Live's default target curves are known to sound bass-shy. Here's a choice of target curves based on Harman research. These target curves can be directly loaded from within Dirac Live 2/3. They differ in the amount of bass boost.

Note: Use the very same target curve for all your speakers including the subwoofer. Do NOT use different target curves amongst speakers in the crossover region to the subwoofer(s) or you'll end up with a combined response that no longer follows the intended curve. Adjust high frequency fall-off according to your speaker's in-room response.

Target curves for Dirac Live 2.5.2/3 and later:

Bugs and quirks