One of the most beloved studio compressors ever made finds its digital counterpart in Opto 2A by Antelope Audio — an optical compressor and limiter plugin. Known for its smooth, transparent compression and natural programme-dependent response, it is a go-to choice for vocals, bass, acoustic guitar, and any source that requires gentle, musical dynamics control.

Smooth Optical Compression

Opto 2A recreates the unique behaviour of optical gain reduction, where an electro-luminescent element and photoresistor work together to produce naturally smooth compression. The result is effortless dynamics control with a distinctively musical quality that enhances rather than restricts the audio.

Programme-Dependent Response

The attack and release characteristics of Opto 2A adapt automatically based on the input signal, producing faster response on sharp transients and slower, more relaxed behaviour on sustained material. This makes it extremely versatile across different types of audio content.

Essential Mixing Tool

With simple, intuitive controls for peak reduction and output gain, Opto 2A is quick to set up and delivers consistently musical results. Available in AAX, VST3, and AU formats for macOS and Windows, it is also available as a Synergy Core real-time effect.