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A1StereoControl

4.8 / 5  (36 votes)
System : Win32 Win64 OSX
Format : VST AU RTAS AAX
A1StereoControl - free Stereo expander / limiter plugin
A1StereoControl is a stereo wideness expander / limiter.

The integrated Safe Bass algorithm centers all bass frequencies below an adjustable value. This gives your tracks the solidity and definition you want while preserving maximum transpancy and sharpness.

Additionally A1StereoControl brings you the possibility to place your stereo signal inside the stereo field in a very intuitive way. The expert mode features different pan laws (0db, -3db, -6db), different pan curves (linear, logarithmic, sin/cos) as well as classic balance mode or dual panning.
  • Expand or limit stereo wideness (from 0% to 200%).
  • SAFE BASS algorithm centers all bass frequencies (BASS gets MONO).
  • Linear phase (important for mastering).
  • RESIZABLE GUI (fully vector-based, nice on 'retina' displays or even very small ones).
  • No latency.
  • Phase Flip (flips the whole input signal 180°).
  • Swap L-R (swaps left and right input channel).
  • Mono turns the input signal to mono, but panning is still possible.
  • All parameters automatable.
  • - 12 dB input and output gain.
๐Ÿ’ฐ Please support freeware development
NMUSIC
(5/5)
Feb 11 2026
Similar design to Waves S1 images, however THIS is the version Waves should of made. Love the different spacial imaging perspectives and the centered low mono.
Vitor
(5/5)
Jul 15 2025
Using on Equalizer APO, and just work perfectly. Create the expansion stereo effect, making the speakers sound more wide than they are. Thanks Alex
Eltatum
(1/5)
Jul 21 2021
It doesn't work in Logic Pro X in a Mac. It seems a good Plug-in, but I cannot use it. Thanks anyway.
Angelo Silva Sep 02 2024
Funciona para mac os a cima de 10.15
Dangus
(5/5)
Jul 10 2021
Easily as good as Waves S1 Imager, this plugin covers all the bases required to widen and position your sound. I've used it for years and it has never caused any issues.
Bob Angelo
(5/5)
Aug 31 2020
Very good.
Os
(5/5)
Jul 22 2020
Muchas gracias
Francisco May 11 2020
Se puede usar con Studio One 4?
im5am
(5/5)
May 01 2020
This makes such a subtle but huge difference.. one of the best vsts imo..
Anonymous
(5/5)
Apr 22 2020
expert
Thomas Apr 08 2020
Doesn't work with Logic Pro X on a mac
McGuire (BTDS)
(5/5)
Feb 04 2020
I prefer this to any plugin Ive tried... paid or free.
Billy Vidak
(5/5)
Jan 02 2020
I've used this plugin in every single track I've made within the past 4 years. Extremely useful. Even when turned up all the way, the stereo widening effect manages to keep the center intact so the track is still loud when played in mono. I also use the Safe Bass on every master. FANTASTIC PLUGIN!
q80vV Jul 14 2019
Great plug-in, it helped me a lot. I pushed the fb like button because I didn't find a DONATE button. I would be happy to donate something.
Alfredo
(5/5)
Jun 09 2019
In the same level than the paid version of a similar product
Brentini May 08 2019
An awesome free utility! Thanks to the developer!
รโ€™รยปรยฐรยดรยธรยผรยธร‘โ‚ฌ
(5/5)
Feb 05 2019
รยบรยปรยฐร‘ยร‘ยรยฝร‘โ€นรยน รยฟรยปรยฐรยณรยธรยฝ รยผรยฝรยต รยพร‘โ€ก รยฟรยพรยฝร‘โ‚ฌรยฐรยฒรยธรยปร‘ยร‘ย!!!!!
รยฎร‘โ‚ฌรยธรยน
(5/5)
Jan 23 2019
รลพรยณร‘โ‚ฌรยพรยผรยฝรยพรยต ร‘ยรยฟรยฐร‘ยรยธรยฑรยพ!
DJ Don Julio
(5/5)
Jan 13 2019
I love this expander. It doesnรขโ‚ฌโ„ขt make the stereo field sound stretched like Iรขโ‚ฌโ„ขve heard in other plugins. It really feels like it opens up the mix and makes you feel like youรขโ‚ฌโ„ขre sitting in a room with the sounds around you.. I recommend it.
raven
(5/5)
Sept 22 2018
Great power boost and clean
Drain Bamage
(5/5)
Jul 01 2018
This is a really great plug, sounds great and well thought out interface. However, it consumes way too much CPU. Most plugins of this nature consume maybe 1%, this one is consuming 5% on my system, even when nothing is playing. Developer needs to correct this if at all possible.
Cody Sorenson Mar 05 2018
So far, so good! :)
Dan
(5/5)
Dec 04 2017
A very good tool with some useful features for mastering.
Sean Cornelius
(4/5)
Sept 22 2017
Thanks so much... It's so good
the one
(5/5)
Aug 07 2017
Awsome but doesnt work with lmms
Anonymous
(3/5)
Jul 14 2017
Good channel too. Can be glitchy at times.
DouglasTheAwesome
(4/5)
Jul 07 2017
This is a really nice VST. It glitches out and doesn't work in LMMS, though I found a loophole that makes it work just fine with some tweaking. I really like using it to expand the stereo width, it sounds very nice.
NeCaster
(5/5)
May 28 2017
It's a shame those ...bases, ...walks and ...tools with their mega$$$ soft have nothing close to this compact and extra versatile VST. This is a must for every serious DAW out there. Huge thanks!
PULSE HUNTERS Apr 21 2017
I love this plugin, it's just like the S1 stereo enchanger.
JJJ
(5/5)
Feb 25 2017
The best!
JU
(5/5)
Feb 15 2017
ENORME!!!!! SUPER VST
Pazuzu May 07 2016
Excellent ! Thank You !
EOW Audio
(5/5)
Apr 07 2016
Fantastic product!
ORION Feb 27 2016
EXCELLENT,,,THANKS !!!
Nicholas
(5/5)
Jan 24 2016
This VST is absolutely amazing.. It's just.. Wow.
Clement jatau Sept 07 2015
This is all I need from a stereo expander, and for free? There is nothing better.
k s a v
(5/5)
Sept 06 2015
f a n t a s t i c :) and gorgeous , but we also need EQ COMP REVERB + + + :)
Dennie Aug 24 2015
This is what everyone needs.
charlie
(5/5)
Aug 11 2015
If I had known it before, I would had never bought Waves S1. I literally love the Mute Mid and Mute Sides buttons. You won't find a better stereo expander for free!
kirby
(5/5)
May 03 2015
A wesome! No ilok needed!
ksavHOMEworks
(5/5)
Apr 26 2015
I use it everyday... sweet. Pro quality... love it!
Javi Ramallo
(5/5)
Mar 18 2015
Extraordinario.
HappyKafkaCrisis
(5/5)
Jan 03 2015
The perfect surrogate for the S1 Imager of the forbidden firm.