Free frequency shifter combined with an analog-style echo for psychedelic dub effects.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Checked September 2026
Valhalla Freq Echo vs ChowMatrix (2026)
Valhalla Freq Echo is best for psychedelic frequency-shifted dub echoes; ChowMatrix is best for experimental delay textures. Valhalla Freq Echo starts at Free and ChowMatrix at Free.
A free infinitely growable delay effect with complex internal modulation and feedback.
VST3supportedAUsupportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXsupported
| Valhalla Freq Echo | ChowMatrix | |
|---|---|---|
| Best for | psychedelic frequency-shifted dub echoes | experimental delay textures |
| Starting price | Free | Free |
| Free version | Yes | Yes |
| Free trial | — | — |
| Formats | VST3, AU, AAX | VST3, AU |
| OS | Windows, macOS | Windows, macOS, Linux |
| Key features | Bode-style frequency shifter, Analog-style echo with tempo sync, Low-cut and high-cut filters for delayed signal, Feedback control capable of self-oscillation, 64-bit VST2.4/VST3/AAX/AU | Tree of delay lines, Per-line feedback, panning and distortion, Complex internal modulation, Standalone app |
| Developer | Valhalla DSP | ChowDSP |
Questions people ask
Valhalla Freq Echo starts at Free; ChowMatrix starts at Free.
Bode-style frequency shifter, Analog-style echo with tempo sync, Low-cut and high-cut filters for delayed signal, Feedback control capable of self-oscillation, 64-bit VST2.4/VST3/AAX/AU.
Tree of delay lines, Per-line feedback, panning and distortion, Complex internal modulation, Standalone app.