Fuse Audio Labs proudly presents the VCL-4 Vintage Opto Leveler plugin. The VCL-4 is a faithful emulation of the silver face revision of the op amp based successor of the classic late 1960s opto leveler. It provides you with unintrusive to extreme program dependent and musical opto compression. The switchable ratio option makes for a flexible solution over a wide range of source material. During the modeling process, Fuse Audio Labs rebuilt the entire original circuit on strip board, replacing the original opto-cells that were made up of an LED and an photo-resistor with suitable Vactrols. Every part of the circuit, including the receiver stage, the side-chain and Vactrol LED driver circuit, the Vactrol itself, as well as the push-pull driver stage and the output transformer has been accurately modeled.

Fuse Audio Labs VCL-4 is available now for $59, with an intro price of $39 until January 31. It requires macOS 10.8 or later and an AU, VST, or AAX plugin host.