ART Pro-VLA II Two Channel Vactrol-based Compressor. VCA-Less Vactrol Opto-Compression Design, Mastering Quality Audio Signal Path with Tube Gain Stage, Variable Threshold, Ratio & Output Controls. Enhanced Link Mode – While in stereo link mode, channel 1 level control acts as a master output level and channel 2 becomes a balance control between them, – […]... Read More