

It’s just a tube amp with photo-resistors, l ighted by a fluorescent panel driven by the output signal.Īt the time of this invention, there were not many ways of making an audio compressor: only variable-mu and optical. There is no electronic circuitry involved with the compression itself.

It’s a totally different device in terms of construction where all the compression magic happens inside an optically coupled element formed by a fluorescent panel and some photocells: the famed T4A element. The White 2A Leveling Amplifier is based on a legendary vintage unit that is entirely tube-based. This gives you control over release times that shape transients in such a manner no hardware optical compressor can match. bx_opto not only delivers that musical quality but opens up new sonic possibilities with its variable speed knob, simulating changes in the speed at which the photocell in an optical compressor reacts to light. With Opto compressors, everything is moving constantly, and in an ear-pleasing way!Īnd Brainworx takes the Opto-concept to the next level with this plugin. For example, an Opto compressor will react differently to a longer loud part of a song than to a short loud hit in a quiet part, as the photocells will build up heat over time, which slows down the attack and release times significantly. Opto Compressors respond differently to different input signals, which is often referred to as being “program dependent”. The bx_opto takes the best aspects and anomalies from legendary light-dependent Circuits to create a software compressor you wish you could buy in hardware!
