Vintage Spring Reverbs
& Baxandall EQ

Springs, Vintage Spring Reverb Plugin with Baxandall EQ (GUI)

Vintage Spring Reverbs

Springs is a plugin that features a collection of vintage spring reverbs paired with an authentic Baxandall EQ emulation.

Springs features emulations from 17 types of spring reverbs, ranging from a long 6-spring pipe to a tiny battery-powered single-spring unit. We have used a combination of convolution and modelling to recreate the vintage character of each reverb.

Spring reverbs were usually paired with tone stacks from guitar amplifiers. Springs features one of the most iconic and unique sounding tone stack equalizers: the Baxandall EQ. A classic Baxandall tone stack usually features just the bass and treble bands, but we have also added a Mid band (with control over the Q).

Springs is available for MAC, PC, and LINUX (VST, VST3, AU, AAX, CLAP, 64-bit only), and also as AUv3 and Standalone on the App Store.

Spring Reverb Collection

Great British Spring Reverb (Bandive)

GBS (6 Springs)

A pair of Accutronics spring tanks housed in a length of plastic drainpipe. Circa 1970-79.

Spacexpander Spring Reverb

Spacexpander (2 Springs)

Iconic Spring Reverb made in the USA.
Released in 1960.

GR-1 (4 Springs)

Compact rack-mount Japanese Spring Reverb with a warm vintage sound. Released in 1985.

Furman RV-1 Spring Reverb

RV-1 (3 Springs)

Classic American Spring Reverb. Circa 1970-79.

Roland RE-201 Space Echo

RE-201 (3 Springs)

Classic Japanese Tape Echo with Reverb Tank. Released in 1974.

RE-200 Spring Reverb

RE-200 (3 Springs)

Precursor of the legendary RE-201 Space Echo.
Released in 1973.

SuperReverb 76 (2 Springs)

Very rare German 4-channel tube amplifier with built-in reverberation. Circa 1970-79.

Pioneer SR-202W Spring Reverb

SR-202W (2 Springs)

Used by many artists as the “secret weapon” to add depth and character to vocals.

Hawk HR-12 Spring Reverb

HR-12 (2 Springs)

Vintage Japanese spring reverb, branded as “Echo Unit”. Dating from the late 60s or early 70s.

HSV-1 spring reverb hi-fi impulse response

HVS-1 (2 Springs)

Germanium-powered spring reverb made for vintage Stereo/Tuners. Released in 1964.

Doepfer A-199 Spring Reverb

A-199 (3 Springs)

Modern eurorack spring reverb module.

Monacor REV-25 Spring Reverb

REV-25 (1 Spring)

Vintage Japanese spring reverb. Also rebranded as AM-534. From the 70s.

RA-844 Spring Reverb (Battery Powered)

RA-844 (1 Spring)

Very small, battery powered, solid-state reverberation amplifier. From the late 70s or early 80s.

Audition Preamp Spring Reverb

Audition (1 Spring)

A small guitar head amplifier, very noisy, and with a very basic spring reverb. Released in 1975.

piezo echo box model rm-007 spring reverb

Echo Box (1 Spring)

The smallest spring reverb ever, it sounds like a boomy echo. Circa 1970-79.

Twin Amp Spring Reverb

Twin (3 Springs)

Classic American Guitar Amplifier.
Released in 1985.

Meza Amp Spring Reverb

Meza (3 Springs)

Classic American Guitar Amplifier.
Released in 1999.

Also available on iOS

Springs is available for iPhone and iPad on the App Store, as a AUv3 plugin and Standalone (IAA).

Baxandall EQ Curve Display

Baxandall EQ

The Baxandall EQ is a classic type of EQ, mostly found in guitar amps, and usually limited to just a single tone control or two bands (bass and treble).

We have added a third band (mid with Q control) to shape the reverb sound further.
One important characteristic of the Baxandall EQ is that the bands interact with each other.

This may seem like an unwanted behavior, but it’s one of the reasons why the Baxandall EQ curves are smooth and musical.


By clicking on the wrench tool button you can open the editor window.

Springs uses a combination of convolution and modeling to recreate each spring reverb. With the editor, you can edit the impulse response of the reverb directly.

This can be useful to fine-tune the size/decay of the reverb, but can also be used to completely mangle the source (check the experimental presets).

Springs - Spring Reverb Plugin - Impulse Response Editor Page
Springs Bandwidth Control


While with the Baxandall EQ you can shape the sound of the mix (dry+wet) or just the wet signal, with the Bandwidth control you can filter the input signal that goes into the spring emulation.

Some springs have a boomy low end, some are too bright and boingy. By limiting the bandwidth of the signal you can dampen these characteristics.

How Spring Reverbs Work

A spring reverb is an electromechanical device that uses transducers/pickups with steel springs in order to simulate the reflections of a reverb.

The input signal is passed through a transducer to one or multiple springs, the vibrations are then captured by an output transducer on the opposite side.

Using multiple springs with different sizes and different thickness can create a more interesting and rich reverb sound.

AudioThing Spring Reverb


Springs Demo

Try Springs for free with some limitations: silence for 3 seconds every 45 seconds, saving disabled.
If you like it, you can purchase a license and then authorize the demo version.


Requires macOS 10.9 or higher
AU, VST2, VST3, AAX, CLAP (64bit only)


Requires Windows 7 or higher
VST2, VST3, AAX, CLAP (64bit only)


Requires Ubuntu 20.04 or newer
VST2, VST3, CLAP (64bit only)


  • 16 Vintage Spring Reverbs
  • Baxandall EQ (three bands)
  • 80 Presets
  • Resizable Window
  • Preset system with randomizer

Download the Manual (PDF)

System Requirements

 Windows 7 – 11
VST2, VST3, AAX, CLAP (64-bit)

 OS X 10.9 – macOS 13
VST2, VST3, AU, AAX, CLAP (64-bit)
Universal 2 Binary

 Ubuntu 20.04 LTS
VST2, VST3, CLAP (64-bit)

Copy Protection

To activate your plugin you can choose between Online and Offline authorization.
Create an account, log in through the plugin to activate, or download your license file for offline activation.


1 license up to 3 computers

No iLok

We don’t like dongles

No Internet

No connection required to activate


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