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SPRING REVERB

Vintage Spring Tank

Download free Part of NULL JSFX 2.5: 113 plugins, free and open source (MIT). Easiest with NULL JSFX Hub.

Listen

The same music with the Surf Guitar Drench preset and without the plugin. Switch while it plays.

Controls

Decay0.5 to 8 s — Reverb decay time
Tension0 to 100% — Strength of the dispersive chirp
Tone1000 to 8000 Hz — Darkness of the tank (lowpass in the loop)
Drip0 to 100% — Level of the splashy, unfiltered spring echo
Pre-Delay0 to 100 ms — Delay before the reverb
Mix0 to 100% — Dry/wet blend

Best uses

Surf guitar and amp-style reverb
Dub drips and boings on snares
Vintage character on vocals
Lo-fi organ and keys ambience

Properties

Signal chain: Input (summed to mono) → 120 Hz Highpass → Pre-Delay → Two Springs (40-stage dispersive allpass chains in feedback loops, 43.7 / 53.1 ms) → Tone Lowpass + Drip → Mix → Output. Left and right springs differ in length for stereo; zero latency.

Formats

JSFXJSFX for REAPER, with REAPER's own sliders
GFXJSFX GFX for REAPER, with its own interface
VST3VST3 for any DAW
CLAPCLAP for any DAW

Factory presets

Amp Spring Subtle · Surf Guitar Drench · Dub Snare Drip · Vintage Vocal Spring · Lo-Fi Keys Tank · Short Dark Spring · Boing Sound Design

In the FX chains and Rack presets

Classic Wah Rig · Desert Twang · Dub Echo Bus · Funk Rig · Old Radio · Robot Radio Voice

See every FX chain

Try it

Try it on orOS StudioAdd it to a track in your browser, with its own interface. Nothing to install.