Quasar EQ - My first plugin (8-band, M/S, Open Source)
- KVRer
- 19 posts since 25 Mar, 2026
Hi all.
It's a parametric EQ (requires an AVX2 capable CPU).
Built with JUCE / C++
Open Source (GPLv3)
Download (itch.io): https://zalthyrexor.itch.io/quasar-eq
Source Code (GitHub): https://github.com/zalthyrexor
Since this is my very first release, I'd love to hear your feedback or if it works on your machine.
It's a parametric EQ (requires an AVX2 capable CPU).
Built with JUCE / C++
Open Source (GPLv3)
Download (itch.io): https://zalthyrexor.itch.io/quasar-eq
Source Code (GitHub): https://github.com/zalthyrexor
Since this is my very first release, I'd love to hear your feedback or if it works on your machine.
- KVRAF
- 3780 posts since 5 Mar, 2004 from Gold Coast Australia
Thanks. A few things inorder of finding them
1. Can it resize as old eyes have I
2. The dots are hard to differentiate (color code would help)
3. Can they default to Bell not tilt - OR even better - can they have default Freq values that spread them out so they don't start in the same spot, which is very wrong most of the time. spreading eg 100, 200, 400, 800 etc means we are more likely to grab a useful one seeing...
4. A thing I LOVE in QRang is the ability to re-order points by Freq so when I have em jumbled up, bing! they make sense again lo-hi
5. I find the Stereo/Mid and Shape buttons up top seem to do nothing. I assume they are supposed to follow slection and alow choosing this but ???
I am on Reason 13.5 on Win 11 (latest both)

1. Can it resize as old eyes have I
2. The dots are hard to differentiate (color code would help)
3. Can they default to Bell not tilt - OR even better - can they have default Freq values that spread them out so they don't start in the same spot, which is very wrong most of the time. spreading eg 100, 200, 400, 800 etc means we are more likely to grab a useful one seeing...
4. A thing I LOVE in QRang is the ability to re-order points by Freq so when I have em jumbled up, bing! they make sense again lo-hi
5. I find the Stereo/Mid and Shape buttons up top seem to do nothing. I assume they are supposed to follow slection and alow choosing this but ???
I am on Reason 13.5 on Win 11 (latest both)
Benedict Roff-Marsh
http://www.benedictroffmarsh.com
http://www.benedictroffmarsh.com
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
Please think of this plugin as similar to a digital painting tool.
The radio buttons at the top are for selecting your "brush" — they determine the filter shape and whether it affects the Stereo, Mid, or Side channel for the next band you create.
To generate a new band on the analyzer, at least one of the existing bands must be bypassed.
This workflow is several times faster than a traditional EQ; if you don't like a band, just bypass it and click the analyzer to instantly create a new one exactly where you want it.
For example, if you select the Bell shape at the top and all bands are bypassed, you can click eight times on the analyzer to generate eight Bell filters in a matter of seconds.
Regarding the resizing and sorting features, I will take them into consideration for future updates.
The radio buttons at the top are for selecting your "brush" — they determine the filter shape and whether it affects the Stereo, Mid, or Side channel for the next band you create.
To generate a new band on the analyzer, at least one of the existing bands must be bypassed.
This workflow is several times faster than a traditional EQ; if you don't like a band, just bypass it and click the analyzer to instantly create a new one exactly where you want it.
For example, if you select the Bell shape at the top and all bands are bypassed, you can click eight times on the analyzer to generate eight Bell filters in a matter of seconds.
Regarding the resizing and sorting features, I will take them into consideration for future updates.
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
By the way, you were right about the default shape.
I found a bug where it was initializing as Tilt instead of Bell.
I found a bug where it was initializing as Tilt instead of Bell.
- KVRAF
- 3780 posts since 5 Mar, 2004 from Gold Coast Australia
Ooooookaaaay that does work and is fast. It does just break convention/expectation as one will open a point then click on the shape up top and zppptt.
Still leaves it hard to correlate the point with the panel below as there is no way to know which one is 4 easily at all (no number, no color, just aahhhgg.
Workflow is everything and your logic is good if that is what the person does but if not - seeing everyone is used to not even having the panel with the knobs and just drag and modify-drag on the dots.
Thank you for thanking me for helping you find a bug and future updage ideas BTW
:-I
Still leaves it hard to correlate the point with the panel below as there is no way to know which one is 4 easily at all (no number, no color, just aahhhgg.
Workflow is everything and your logic is good if that is what the person does but if not - seeing everyone is used to not even having the panel with the knobs and just drag and modify-drag on the dots.
Thank you for thanking me for helping you find a bug and future updage ideas BTW
:-I
Benedict Roff-Marsh
http://www.benedictroffmarsh.com
http://www.benedictroffmarsh.com
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
Fixed: Default filter shape is now Bell.
Fixed: Eliminated clicking noise during certain operations.
Fixed: Bands are now spaced out by default.
Resizing and sorting are under consideration for future versions.
Fixed: Eliminated clicking noise during certain operations.
Fixed: Bands are now spaced out by default.
Resizing and sorting are under consideration for future versions.
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
I'm cautious about sorting bands because it could break existing DAW automations.
At most, I'm considering sorting only the UI knobs while keeping the internal IDs.
At most, I'm considering sorting only the UI knobs while keeping the internal IDs.
- KVRAF
- 8527 posts since 29 Sep, 2010 from Maui
It sounds good 
I like it, though looking at the meter it appears as tho it's stuck in mid/side mode for me, even though I've not set any filters as such. The DAW's meters don't really reflect that. Anyway, I didn't see a manual anywhere if I missed something. No issues otherwise, win 11, core i5 Iris XE graphics.
I like it, though looking at the meter it appears as tho it's stuck in mid/side mode for me, even though I've not set any filters as such. The DAW's meters don't really reflect that. Anyway, I didn't see a manual anywhere if I missed something. No issues otherwise, win 11, core i5 Iris XE graphics.
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
Thanks for the feedback.pekbro wrote: Tue Apr 28, 2026 7:28 am It sounds good
I like it, though looking at the meter it appears as tho it's stuck in mid/side mode for me, even though I've not set any filters as such. The DAW's meters don't really reflect that. Anyway, I didn't see a manual anywhere if I missed something. No issues otherwise, win 11, core i5 Iris XE graphics.
Changed: Level meters now display M/S and L/R with dedicated labels.
Changed: Increased contrast of the 0dB line.
Added: Reset button for all parameters.
- KVRAF
- 8527 posts since 29 Sep, 2010 from Maui
ThanksZalthyrexor wrote: Wed Apr 29, 2026 1:20 amThanks for the feedback.pekbro wrote: Tue Apr 28, 2026 7:28 am It sounds good
I like it, though looking at the meter it appears as tho it's stuck in mid/side mode for me, even though I've not set any filters as such. The DAW's meters don't really reflect that. Anyway, I didn't see a manual anywhere if I missed something. No issues otherwise, win 11, core i5 Iris XE graphics.
Changed: Level meters now display M/S and L/R with dedicated labels.
Changed: Increased contrast of the 0dB line.
Added: Reset button for all parameters.
btw: I do plan to donate, just wanted to make sure it was working for me and all first. I do
appreciate your efforts for sure.
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
Thanks. Glad it’s working.pekbro wrote: Wed Apr 29, 2026 4:43 am Thanks![]()
btw: I do plan to donate, just wanted to make sure it was working for me and all first. I do
appreciate your efforts for sure.![]()
The donation is totally optional, but always appreciated—it helps keep the development going.
Feel free to use it as much as you like first.
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
Quick question: Does everyone actually read manuals?
I personally think most people hate long PDFs.
I personally think most people hate long PDFs.
- KVRAF
- 8527 posts since 29 Sep, 2010 from Maui
It doesn’t have to be a long manual, you could even do tool tips or something equally simple.Zalthyrexor wrote: Thu Apr 30, 2026 9:12 pm Quick question: Does everyone actually read manuals?
I personally think most people hate long PDFs.
The metering and buttons at the top were the only things not immediately obvious to me. So you don’t need much.
- KVRer
- Topic Starter
- 19 posts since 25 Mar, 2026
Thanks for the feedback.pekbro wrote: Thu Apr 30, 2026 9:24 pmIt doesn’t have to be a long manual, you could even do tool tips or something equally simple.Zalthyrexor wrote: Thu Apr 30, 2026 9:12 pm Quick question: Does everyone actually read manuals?
I personally think most people hate long PDFs.
The metering and buttons at the top were the only things not immediately obvious to me. So you don’t need much.
Added: Tooltip Bar on the bottom.
