Eternal is a barber-pole flanger plugin that creates a unique and continuous sweeping effect, unlike traditional flangers that cycle their tone up and down. It achieves this by using a specialized low-frequency oscillator that modulates and crossfades three flanger units in a seamless manner. The plugin’s through-zero phase design allows for smooth transitions between upwards and downwards motion, producing an endless tonal movement that stands out in any mix.

Featuring a triple-layer flanger engine with both positive and negative feedback options, Eternal offers a broad range of sonic possibilities including rich spectrum sweeps, chorus, pitch shifting, and stereo widening effects. Its modulation system includes a multi-output generator with adjustable stereo phase offset, while a low-cut filter ensures stable performance even with extreme settings. The plugin supports multiple channel configurations, making it suitable for mono and stereo applications alike.

Eternal’s user interface is designed for intuitive control, with color-coded elements and consistent parameter naming to facilitate easy automation and preset management. The interface supports scaling up to 200% for enhanced visibility, accommodating various workflow preferences. Compatible with major plugin formats including AAX, AU, and VST3, Eternal works seamlessly on macOS and Windows systems, supporting both Intel and Apple Silicon architectures.