Soundtoys
EchoBoy
Delay plug-in modeling 30 vintage and modern echo devices in one interface.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Checked September 2026
EchoBoy vs ChowMatrix (2026)
EchoBoy is best for vintage-modeled tape, tube, and analog echo effects; ChowMatrix is best for experimental delay textures. EchoBoy starts at $199 one-time and ChowMatrix at Free.
$199once
A free infinitely growable delay effect with complex internal modulation and feedback.
VST3supportedAUsupportedAAXnot supportedCLAPnot supportedWINsupportedMACsupportedLNXsupported
| EchoBoy | ChowMatrix | |
|---|---|---|
| Best for | vintage-modeled tape, tube, and analog echo effects | experimental delay textures |
| Starting price | $199 one-time | Free |
| Free version | No | Yes |
| Free trial | Yes | — |
| Formats | VST3, AU, AAX | VST3, AU |
| OS | Windows, macOS | Windows, macOS, Linux |
| Key features | 30 built-in echo styles modeling vintage gear, Tempo-locked delay with musical note values, Single, Dual, and Ping-Pong stereo echo modes, Rhythm Echo mode with up to 16 taps, Style Editor for saturation, tape wobble, and diffusion | Tree of delay lines, Per-line feedback, panning and distortion, Complex internal modulation, Standalone app |
| Developer | Soundtoys | ChowDSP |
Questions people ask
EchoBoy starts at $199 one-time; ChowMatrix starts at Free.
30 built-in echo styles modeling vintage gear, Tempo-locked delay with musical note values, Single, Dual, and Ping-Pong stereo echo modes, Rhythm Echo mode with up to 16 taps, Style Editor for saturation, tape wobble, and diffusion.
Tree of delay lines, Per-line feedback, panning and distortion, Complex internal modulation, Standalone app.