Modular Multi-Effect Processor
23 studio-quality effects, now with Stutterus tempo-synced glitch repeater, tape Stop/Start/Wobble modes, and Mix Lock control freezing. Route, stack, and shape your sound with complete creative freedom.
What's New
A major update: a tempo-synced glitch repeater with tape modes, freeze-any-control workflow, and a fully overhauled preset system.
Stutterus — Glitch / Slice Repeater
A tempo-synced glitch and slice repeater that captures your input on the grid and loops it for the division window. 17 sync rates from 8 bars to 1/16 dotted, per-trigger probability gate, slice reverse, pitch jitter (±12 st), bit crusher, dual envelope modes, and a drag-drop sample layer with capture-from-live and equal-power crossfade against the live audio.
Tape Stop, Start & Wobble
Probability-gated tape-machine modes inside Stutterus. Stop/Start runs an exponential rate ramp on the slice with a Balance dial that picks Stop vs Start — flywheel physics. Wobble drops a single asymmetric dip-and-return inside one division: cassette-drag at 1×, vibrato territory at 4×. Always rhythmically locked to the grid.
Mix Lock — Hold Locked Controls Through Preset Changes
Right-click any continuous knob or Mute/Solo button and pick Lock Control to freeze it. Locked controls ignore preset recall, randomize, knob drag, scroll wheel, and double-click reset. Covers the master strip, per-slot tone/filter/wet-dry, and per-module DSP knobs (which go dormant on swap and re-engage on swap-back). Lock state is session-only.
Preset System Overhaul
The Factory and User preset menus and the next/prev navigation buttons now share a single underlying tree — menu order and navigation order can no longer drift. User folders are flat-alphabetical with the names you actually gave. Factory presets no longer live on disk.
Why Spectrus?
4-Slot Modular Architecture
Chain up to 4 effects in series or parallel. Each slot has independent level control and wet/dry mixing for precise sound design.
Flexible Signal Routing
Route any slot to receive from the main input or any previous slot. Create complex effect chains with ease.
23 Studio Effects
From classic modulation to lush reverbs, tape delays to spectral processing, including 10 reverbs led by Cloud Reverb's granular engine and the new Stutterus tempo-synced glitch repeater.
Dark & Light Themes
Switch between a polished dark theme and a bright light theme to match your DAW or your mood. Every control, meter, and visualizer adapts instantly.
Per-Slot Tone & Stereo
Dedicated Air (sparkle) and Body (warmth) knobs on every slot, plus a new Stereo In control on every effect that continuously blends between classic mono-sum processing and full stereo. No more choosing between vintage character and width.
938 Factory presets
Save and recall your favorite configurations. Organize presets into folders. Lock slots to preserve settings across preset changes.
Low CPU Usage
Optimized DSP code means you can run multiple instances without bogging down your session.
Try All 23 Effects Free
Demo mode gives you full access to every effect (including all 16 Pro effects) so you can explore everything before you buy. A gentle periodic fade is the only reminder.
Slot Lock, Drag & Drop, Copy & Paste
Lock any slot to preserve its settings while browsing presets. Drag slots to reorder them, or right-click to copy and paste an effect configuration between slots.
Cross-Platform & Multi-Format
Available on Windows, macOS, and Linux. Supports VST3, AU, LV2, and CLAP. Works with all major DAWs.
23 Effects Included
7 effects free forever. Unlock all 23 with Pro.
Modulation
- Chorus
- Vintage Chorus PRO
- Flanger
- Phaser
- Tremolo
- Ring Modulator PRO
- Rotary PRO
- Sample & Hold PRO
Delay
- Echo
- Tape Delay PRO
- Spectral Delay PRO
Reverb
- Plate Reverb
- Prism PRO
- Bloom PRO
- Ember PRO
- Shimmer PRO
- Freeze PRO
- Velvet Room PRO
- Velvet Hall PRO
- Glacier PRO
- Cloud Reverb PRO
Utility
- Saturator
Choose Your Version
Free
- Chorus, Flanger, Phaser, Tremolo
- Echo, Plate Reverb, Saturator
- 4-slot modular system
- Flexible routing
- Preset system
- Demo mode: all 23 effects & 938 presets
Periodic fade — not for production use
Pro
Launch pricing — regular $49
- All 23 effects
- 4-slot modular system
- Flexible routing
- 938 Factory presets
- Free updates
Free vs Pro at a glance
Both versions run on Windows, macOS, and Linux in VST3, AU, LV2, and CLAP formats.
| Feature | Free | Pro |
|---|---|---|
| Effects | ||
| Modulation | 4 of 8 | All 8 |
| Delay | 1 of 3 | All 3 |
| Reverb | 1 of 10 | All 10 |
| Utility | 1 of 1 | All 1 |
| Core features | ||
| 4-slot modular architecture | ✔ | ✔ |
| Flexible signal routing | ✔ | ✔ |
| Dark & Light themes | ✔ | ✔ |
| Per-slot Air, Body & Stereo In | ✔ | ✔ |
| 938 factory presets | ✔ | ✔ |
| Free updates for life | ✔ | ✔ |
| Pro unlocks | ||
| Try all 23 effects | Demo mode, periodic fade | Always, no fade |
| Production-ready, uninterrupted audio | — | ✔ |
| Price | $0 | $39 one-time |
System Requirements
Operating System
Windows 10+
macOS 11+ (Intel & Apple Silicon)
Ubuntu 22.04+ / Linux x86_64
Processor
Intel Core i5 or equivalent
RAM
4 GB minimum
Plugin Formats
VST3 · AU · LV2 · CLAP