DuskVerb, Voltus FX, Echo1: Free Plugins of the Week
This week’s collection of freebies is all about free reverb and delay plugins with a twist. Check out DuskVerb, Voltus FX, and Echo1!
Free Plugins of the Week
Dusk Audio DuskVerb: Free Algorithmic Reverb with 5 Modes

DuskVerb by Dusk Audio is a free algorithmic reverb plugin for Windows, macOS and Linux that offers loads of options for creative sound shaping. Based on a 16-channel feedback delay network, DuskVerb delivers everything from small rooms to endless washes of sound.
You can choose from five algorithms, each with its own delay line configuration and character: Plate, Hall, Chamber, Room, and Ambient. Each algorithm can be tweaked using the pre-delay, diffusion, decay time, and size parameters. There’s also a separate set of controls for the early reflections.
In addition, DuskVerb offers three Character knobs: Bass Mult, Treble Mult, and Crossover. These allow for shaping the decay behavior of the low and high frequencies relative to the overall decay time, which is great for making space in your mix, as well as for creative sound design. There’s also a modulation section for adding movement for the reverb tail.
DuskVerb is available for macOS, Windows, and Linux in VST3, AU, and LV2 formats.
Electronik SoundLab Voltus FX: BBD Delay with Harmonic Distortion

Voltus FX by Electronik SoundLab is a delay plugin inspired by classic analog BBD effects. According to the developer, they intentionally avoided clean digital oversampling to allow for natural fold-back and intermodulation, creating the dark lo-fi sounds typically associated with BBDs.
In addition to the delay, Voltus FX includes a dual-stage saturator with separately adjustable Diode and Tube stages. Paired with an input stage that delivers up to +48 dB of gain, this allows for screaming distortion that goes extremely well with the BBD sound. There’s also a modulation section for added movement, as well as an adaptive Chamberlin color filter for sound shaping.
Voltus FX is currently only available for Windows as a VST3 plugin. A Mac version is coming soon.
voidDSP Echo1: Stereo Delay with some cool Add-Ons

Echo1 by voidDSP is a stereo delay with two independent delay lines. The dual setup lets you create complex rhythmic interactions between the two lines.
Each delay line has its own Time control, but you can also sync them. The Feedback control affects both lines simultaneously. A handy stereo visualizer lets you keep an eye on what each line is doing.
But that’s not all. Echo1 offers a bunch of cool extras for making your delays more interesting. In addition to a built-in auto-panner with adjustable width, there’s a chorus and phaser section, a reverb, and a pair of high-cut and low-cut filters. A simple and straightforward stereo delay with plenty of flexibility!
Echo1 is available for macOS and Windows in VST3 and AU formats. AAX is coming soon.
Looking for more free plugins like DuskVerb, Voltus FX, and Echo1? Check out our huge archive!
One response to “DuskVerb, Voltus FX, Echo1: Free Plugins of the Week”

Tilr also released a new delay in the last couple of days: Sirial. It’s a tap delay that, instead of using actual taps, uses individual serial delay lines. Sounds great!
https://www.kvraudio.com/product/sirial-by-tilr