RES-09 by AudioThing analog organ and strings synth plugin interface

RES-09: Analog Organ and Strings Synth Plugin by AudioThing

Rated 4.6/5 on Plugin Boutique (16 ratings)

RES-09 is an analog-style organ and strings synth plugin from AudioThing, a faithful emulation of the Roland RS-09 from the late 1970s. It is available as VST3, VST2, AU, AAX, CLAP and Standalone.

VST3VST2AUAAXCLAPStandaloneWindowsmacOSLinux64-bit

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01Overview

RES-09 recreates the Roland RS-09, a late-1970s analog synthesizer known for its organ and string voices. The plugin covers both sections of the original design, with separate tuning for each oscillator and an ensemble effect that adds movement and stereo width. Four built-in effects sit after the synth core: tape echo, spring reverb, overdrive and phaser. The plugin runs on Windows, macOS and Linux in 64-bit form.

Best for

Vintage organ sounds
Analog string pads
Retro keyboard tones
Vintage-inspired sound design
Ensemble chorus textures

Developer: AudioThing
Category: Synths
Store: Plugin Boutique

02Key features

What you get

Organ and strings generators modeled on the Roland RS-09
Ensemble chorus effect with BBD character
Vibrato with delay
Four effects: tape echo, spring reverb, overdrive, phaser
Drag-and-drop effect reordering
Individual oscillator tuning controls
Brightness and contrast controls
Preset system with randomizer
Resizable window

03In depth

Organ and Strings Sound Character

The organ and strings sections can be used separately or layered together. The organ section mixes four square waves, and the strings section builds a saw-like waveform by layering square waves at different octaves and volumes. A bias control sets the balance between those layers.

The Top Octave Generator approach keeps notes on different octaves in sync, so the sound avoids the phasing problems common in sample-based instruments. The BBD-based ensemble chorus adds stereo width and modulation to otherwise static tones. A rate multiplier adjusts the speed of the internal modulator LFOs.

Effects, Controls and Workflow

The four effects are tape echo, spring reverb, overdrive and phaser. You can rearrange them in any order by drag and drop. Brightness and contrast controls shape the tone, and oscillator tunings can be adjusted individually.

The window is resizable, and a preset system includes a randomizer for generating new starting points.

04Specs

Will it run?

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

Developer	AudioThing
Type	Plugin
Category	Synth
Formats	VST3, VST2, AU, AAX, CLAP, Standalone
Operating systems	Windows, macOS, Linux
Architecture	64-bit

05FAQ

Questions, answered

What formats does RES-09 support?

RES-09 is available in VST3, VST2, AU, AAX, CLAP and Standalone formats.

Which operating systems does RES-09 run on?

RES-09 runs on Windows, macOS and Linux. Windows 7 to 11, macOS 10.13 to macOS 15 and Ubuntu 20.04 LTS are listed as supported, with a 2GHz CPU and 4 GB RAM as the minimum requirement.

What is RES-09 based on?

RES-09 is a faithful emulation of the Roland RS-09, an analog organ and strings synthesizer released in the late 1970s. AudioThing says it adds modern enhancements to the original character.