Great tool, lots of control both for mixing and creating new results, next level ducking
FREE WITH NEWSLETTER SUB
True AB helps you hear why your mix sounds different from a released track, from overpowering bass to details that get lost. Compare at matched loudness, see frequency differences, and explore phone, car and club speaker models without leaving your session.
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producers
True AB Referencing helps you hear how your track stacks up against released music, so you know what needs adjusting before it leaves your studio.
For the first five years of my career, I underestimated A/B referencing. Then I took my laptop to a club where I used to DJ and played my unfinished track beside a released record. I immediately heard differences I’d been missing in the studio.
That experience showed me why referencing matters. We made flow AB referencing so you can make those comparisons inside your own session and hear what needs work, whatever setup you’re mixing on.
Erik Heirman, Founder of Rapid Flow
Switch between your mix and a finished reference to hear the difference immediately. True AB referencing brings the reference down to your track’s level, so extra loudness won’t skew your judgment.
Start with the club system model and compare your track’s low-end weight with a released reference. Then explore the other playback models to hear which details stay clear and where the balance changes, while you can still make adjustments in your session.
True AB lets you check what weakens in mono and listen to the side signal for low-end clutter in wide reverbs. Hear where the problem is before deciding what to change.
Expand the spectrum to inspect the frequency balance, check your loudness and peaks, or listen to the side signal for low-end clutter in wide effects. Give your next adjustment a clear reason.
Mixing without a reference
Mixing with True AB
Choose the view that keeps your session easy to follow. Switch between Light and Dark themes to suit your workspace, and expand the spectrum when you need a closer look at your mix’s frequency balance.
Overall rating: 4.9 / 5 from 226 reviews.
Great tool, lots of control both for mixing and creating new results, next level ducking
An absolutely essential plugin when it comes to mixing and mastering a track! I love how you can have up to 5 references and play them back in real time by just switching between them. This has doubled my mixing workflow when mixing and made producing the final track so easier! 10 out 10 stars!
Excellent plugin. Although I already have something more advanced I find it very useful in my arsenal of tools and I've put it at work.
It helps me see the big picture and make decisions in the job more easily.
When you’re making dance music, especially trance, progressive house and anything built around a proper low-end, you can spend hours tweaking a mix and convince yourself it sounds incredible. Then you play it against a professionally mastered record, and suddenly you realise your kick is too heavy, your top end is harsh, or your whole mix lacks the weight and definition you thought it had. That’s where Rapid Flow True AB Referencing comes into its own. The first thing that stands out is the spectrum comparison. Having two tracks displayed together makes it much easier to spot differences in the overall tonal balance. You can see where your bass energy sits, how the mids are behaving, and whether your high frequencies are getting carried away. It’s particularly useful when you’re working on that tight, driving low end that trance and progressive house depend on. I also like the fact that it brings several analysis tools together in one place. Spectrum, correlation, stereo image, dynamics and loudness are all accessible from the same interface. Rather than constantly jumping between different plugins, you have a central point for checking how your mix compares with a reference. The reference library is another practical feature. Being able to load different records and switch between them is useful when you're trying to understand why one track feels huge and open, while another sounds thin or congested. For electronic music, I’d be comparing against properly mastered records in the same ballpark as my own production, not some random track from a completely different genre. But here's the important bit: the analyser is a guide, not a mixing engineer. A spectrum curve isn't a recipe for a professional master. A record with a massive bass peak isn't necessarily better than one with a tighter, more controlled low end. Different arrangements, kicks, basslines and mastering choices will produce different curves. And if you haven't level-matched your reference properly, you can end up making the wrong decisions simply because the louder track sounds more impressive.
First of all, giving this to the community as you did is 5 stars alone...especially for those of us in countries with horrendous exchange rates (Kenya). Secondly, to have THIS plugin do more than the other 'popular' one in my arsenal is pure gold. Third, the functionality just pushed my mixing skills to the international stage! Most importantly to me currently is that my old Macbook Pro 2014 on Big Sur, which often flatlines my CPU usage at the sight of a third party plugin is BARELY using any memory. You can literally see it in the screenshot! THANK YOU RAPID FLOW!
Its great. Love the features it has. In protools it worked perfectly good.
I won't say where from, but I only just purchase an A/B app and it only just about comes up to scratch to this amazing and FREE release! It will be my go-to for sure!
Everyone should get it! CPU easy and easy to navigate!!
I love it, I wish they would add more monitoring options or something like that, but it's good.
Loving the swiftness and simplicity of True AB from Rapidflow. There's so many useful features packed into this tool. I especially love how everything is essentially "right there". Nice one!
Great plugin—you can do so many important things with it ! thank's a lot !
Perfect tool, for made perfect job !! love it !!
I was able to fix some issues with this tool in a quick way. Thank you
low on cpu usage and pretty helpful!
The speaker model function has been a game changer for me. I really love it. It gives fantastic simulation of different environments, something I've been searching for in a while and found it here.
Most easy to use and understand reference vst
I Love this product!
super bon produit j,adore merci a toi
I really found this helpful using a reference track to compare my mix with. I made changes that I wouldn’t have otherwise made. Thank you for helping my mixes sound more professional.
Un plugin increíble, era usuaria del A/B de otra compañia y lo reemplace por completo, mas claro, más intuitivo, hace todo lo que tiene que ser, realmente útil y preciso!! Feliz!!
You literally saved my life and my mixes. As a music producer it's always a bother to setup monitoring (cause I primarily use headphones) to know how your mix & masters are against references. Now I don't ever have to again thanks to you guys. A one stop shop for monitoring like a pro is priceless literally. Such a blessing...🙏🏾💯
Very nice plugin!
True AB by Rapid Flow has quickly replaced my previous EQ reference plugin. It outperforms other market leaders thanks to several standout features: • Real-time visual feedback for both active and reference tracks • Seamless level matching • Delta monitoring • Support for up to 5 reference tracks simultaneously
It's awesome, autogain is a bit finicky, maybe add different modes? Like one for, peak, rms, etc, some filtering options - being able to hone in on any part of the spectrum, compare lows, high mids etc, stereo image, correlation and dynamics would be great, also different slope options, I prefer 4.5, and optimised sync...
It’s a great tool; I also have Melda MCompare—that one is just as good, plus it has a spectrum analyzer. Thanks a lot!
Very useful tool to see in What frequencies I should revise.
I've been loving this product so much since I got it. It's very straightforward to use, and the auto-gain compensation makes comparing my mix with my reference track such a breeze. I love how intuitive the plugin is to use!
Easy to install works well. Great to compare with other tracks as a reference gives accurate feedback
Love True AB by Rapid Flow!
This is a great plugin that allows me to quickly compare my songs to reference tracks as well as test them on different types of speakers, all in one place. I also find the mono and sides only feature very useful. It’s a plugin I now use on every project.
Good plugin
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Very useful to measure mixes and master to compare with industry tracks published in main music platforms!
❤️ It is very useful
Just downloaded and initially looks really, really good. Still getting used to all the functionality, so far...impressed.
I love this plugin. The reference section works really well, and the various sound simulations are a great feature. If there had been a meter for momentary reading next to the RMS meter, this plugin would have scored 100 out of 100. Thank you!
Great plugin and much needed in my set up for final mixes
Cumple con lo q promete me sirve mucho
Does the job very well . just what i needed
True AB Referencing runs as a lightweight plugin inside your DAW, designed to integrate seamlessly with your system and existing workflow.
VST3 64-bit
AU 64-bit, VST3 64-bit
Windows version on Wine + bridging VST3 with Yabridge
No physical dongle necessary
Our plug-ins should work with any compatible DAW. We test against the following:
