RO-SPR spring reverb plugin interface by Black Rooster Audio

RO-SPR: Vintage Spring Reverb Plugin by Black Rooster Audio

Rated 4.8/5 on Plugin Boutique (28 ratings)

RO-SPR is a vintage spring reverb plugin by Black Rooster Audio that models six classic spring types, with adjustable length, decay, a three-band EQ and gain staging.

VST3VST2AUAAXWindowsmacOS64-bit
AVAILABLE ATPlugin Boutique
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01Overview

RO-SPR is an effects plugin focused on spring reverb, a mechanical reverb type long associated with guitar amps and vintage studio gear. Black Rooster Audio built it around six spring types modeled after their hardware counterparts. Length and decay controls move the sound from short room-style reverberation to longer, more psychedelic space. Because spring reverbs are naturally low-end heavy, a built-in three-band EQ lets you shape the spring's spectrum to suit each source.

Best for

  • Vintage guitar reverb
  • Spring tones on vocals
  • Mix bus color
  • Synth spring ambience
  • Psychedelic space effects
  • Drum room sound
Category
Reverbs
Store
Plugin Boutique
02Key features

What you get

  • Six modeled spring reverb types based on hardware counterparts
  • Adjustable spring length and decay controls
  • Three-band EQ for shaping the spring's low-end-heavy spectrum
  • Mono, stereo and M2S signal routing modes
  • M2S mode creates width from mono sources using non-identical springs
  • Adjustable input and output gain staging
  • Separate stereo channel level control for natural spring image
03In depth

Spring Character and Sound Shaping

Spring reverbs are often described as bouncy or ringy, with a low-end emphasis that comes from their mechanical design. RO-SPR gives you six modeled spring types, each with its own character, covering several decades of hardware use.

The three-band EQ is the main tool for taming that low-end weight. Cut the bass where it muddies a mix, or lift it when you want the dense, boomy quality that many engineers used on guitars, vocals and synths.

Adjustable gain staging lets you set the input level before processing and the output level after it, so you can keep the spring's color without overloading the signal.

Routing Modes and Workflow

RO-SPR offers mono, stereo and M2S routing. In stereo mode, the left and right signals feed independent springs. M2S mode sends a mono source to non-identical springs to create width from a mono track.

You can use RO-SPR on individual tracks such as guitar, bass, vocal, drums, brass or synth, or on a bus or mix channel. Length and decay are the controls to reach for first when adjusting how long the reverb tail rings.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

DeveloperBlack Rooster Audio
TypePlugin
CategoryReverb
FormatsVST3, VST2, AU, AAX
Operating systemsWindows, macOS
Architecture64-bit
05FAQ

Questions, answered

What is RO-SPR?

RO-SPR is a spring reverb effects plugin by Black Rooster Audio. It models six classic spring types and includes length, decay, EQ and gain controls.

What formats and operating systems does RO-SPR support?

RO-SPR is available in VST3, VST2, AU and AAX formats, and runs on Windows and macOS in 64-bit.

What do I need to run RO-SPR?

You need a VST, VST3, AU or AAX compatible 64-bit host. On macOS, it requires OS X 10.9 or newer, with M1 and M2 Apple Silicon supported. On Windows, it requires Windows 7 or newer and an SSE2 compatible processor. Both platforms need at least 1GB of RAM and a display resolution of 1280x1024 or higher.

Does RO-SPR have a trial version?

No, RO-SPR is not offered as a trial.

07Developer

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