Spectrus is Now 1.3.1 - Modular Multi-Effect Plug-in, Ducker Added, Total of 23 Effects - Windows, macOS, Linux

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Spectrus 1.3.1 is out. Click-free reverbs, slot selection, an in-app Quick Start guide, and a metering overhaul. A quality-and-polish update - free for everyone: Free, Demo, and Pro users.

Download: Video from the 1.3.0 release that v1.3.1 builds upon:

What's new in 1.3.1:

Click-free reverbs - Every continuous knob and every tail re-roll is now click-free across all 10 reverbs. Sweep Size, Decay, Character, High Cut, and the rest, or hit Randomize/Morph to re-seed the tail - no zipper noise, no seams.

Slot selection - Click a slot to select it (its column gets a highlighted outline), then load a single-effect preset and it drops straight into that slot. Only that slot's effect and its per-slot settings change - your Master, routing, and the other three slots are left untouched.

In-app Quick Start - A built-in overlay walks you through the 4-slot workflow, so new users can get oriented without leaving the plugin.

Metering overhaul - The signal-flow strip and Master VU have been redesigned for clearer, more readable level metering.

Ducker upgrades - The Level engine gains a Knee control to set the width of its engagement knee, and the Ducker now shows live gain-reduction metering.

Plate Reverb - New modulation waveform selector for shaping the character of the modulation.

Exact reverb seeds - Seeds now display as an 8-character value you can copy and paste to reproduce a tail precisely.

Free - 7 effects (Chorus, Flanger, Phaser, Tremolo, Echo, Plate Reverb, Saturator), no restrictions, forever.

Pro - All 23 effects.

Demo mode still gives full access to all 23 effects with the periodic fade, so you can audition the full effect set before buying.
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Quick Tip
Building a multi-effect chain across the 4 slots

Load a preset -- it drops into Slot 1. Click the lock icon (the slot border turns orange), then load another preset and it fills Slot 2. Repeat to stack up to 4 effects.

Load into one slot -- click a slot's box in the flow strip to select it (it gets a colored border); the next preset you browse or step to loads into that slot only.

Random Mix (the shuffle / crossed-arrows button) randomizes every unlocked slot at once -- so lock the parts you like and keep shuffling the rest.

Drag the dashed strip under the effect animation to reorder slots, or right-click it to copy/paste an effect into another slot.

Full walkthrough in the manual -->
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Website: morphulus.com
Full changelog: morphulus.com/changelog.html
Manual: morphulus.com/manual.html
Bug reports: bugs.morphulus.com
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Last edited by Morphulus on Sat Jun 20, 2026 5:00 pm, edited 15 times in total.

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Happy to answer any questions about Spectrus.

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Bug reports: bugs.morphulus.com

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Public Beta is open.

Download (Windows VST3, no registration required):
https://morphulus.com/
Then click on the download link.

Full manual: morphulus.com/manual.html
(Currently covers the free effects — Pro effects documentation coming before launch)

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Thanks for the free version. I am gonna try it and let you know my thoughts.

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satYatunes wrote: Tue Feb 24, 2026 8:17 pm Thanks for the free version. I am gonna try it and let you know my thoughts.
Thank you satYatunes.

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Is there going to be some way to demo the pro effects?

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Hey Pekbro, yes ultimately at release there will be 2 modes available when you download, the Free mode, and a Demo mode. In Free mode you have the 7 effects with no limitations. In Demo mode all Pro effects are available to demo. The only limitation is the audio will periodically fade out and recover about every minute, similar to how Valhalla DSP demos their plugins.

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Ok thx, looking forward to it.

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[UPDATE] Beta now includes Demo and Free mode. Link above ^

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Morphulus wrote: Tue Feb 24, 2026 8:21 pm
satYatunes wrote: Tue Feb 24, 2026 8:17 pm Thanks for the free version. I am gonna try it and let you know my thoughts.
Thank you satYatunes.
Tried it. Even made a video. Hope it creates some buzz.


My thoughts: As a UI designer the first thing that I look is the UI/UX. The current UI is usable but gives a prototype/utilitarian vibe. It could have been better.

Tried it before the demo mode release so tried only the free effects. IMHO all are top notch. Loved the Random Mix button, surprisingly the results were good. Thanks for shipping with huge number of presets. Good luck.

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Wow satYatunes, very cool, thank you.

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Neat! I like it. :tu:

I would say that $50 is not cheap for many these days, consider an up-gradable mid tier if your CP can facilitate it. This could allow you to easily add additional effects or content later as well via upgrades.

-Cheers

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Hey Pekbro, that's great, glad you like it. Let me think on a mid-tier version. Thank you for the feedback.

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Personally, I don't mind the tile look, but I think they should fill the available space better, or in the least have some alignment options, in particular below the vu meter.

I can confirm this performs well on Core i5...

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