Free flanger plugin with eleven algorithms for through-zero flanging, doubling, and strange modulated echoes.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Checked September 2026
Valhalla Space Modulator vs Acon Digital Multiply (2026)
Valhalla Space Modulator is best for infinite flanging and doubling effects; Acon Digital Multiply is best for thickening vocals and instruments. Valhalla Space Modulator starts at Free and Acon Digital Multiply at Free.
A free chorus that thickens sounds without phasey artifacts.
VST3not supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
| Valhalla Space Modulator | Acon Digital Multiply | |
|---|---|---|
| Best for | infinite flanging and doubling effects | thickening vocals and instruments |
| Starting price | Free | Free |
| Free version | Yes | Yes |
| Free trial | — | — |
| Formats | VST3, AU, AAX | VST, AAX, AU |
| OS | Windows, macOS | Windows, macOS |
| Key features | 11 flanging algorithms, Through-zero and barberpole flanging modes, Detuning and doubling effects, Native Intel/Apple Silicon builds, 64-bit VST2.4/VST3/AAX/AU | Up to six extra voices, Phase-randomizing filters, Five-band EQ with visualizer, Modulated pre-delay, A/B comparison and undo/redo |
| Developer | Valhalla DSP | Acon Digital |
Questions people ask
Valhalla Space Modulator starts at Free; Acon Digital Multiply starts at Free.
11 flanging algorithms, Through-zero and barberpole flanging modes, Detuning and doubling effects, Native Intel/Apple Silicon builds, 64-bit VST2.4/VST3/AAX/AU.
Up to six extra voices, Phase-randomizing filters, Five-band EQ with visualizer, Modulated pre-delay, A/B comparison and undo/redo.