Warm Audio Warm WA-1B All-Tube, Transformer-Balanced Optical CompressorThe WA 1B accurately recreates world class Scandinavian compression, combining smooth tube optical warmth with precision controls. Like its original inspiration, favored by producers and engineers from Chris Lord Alge to Rick Rubin, the WA 1B delivers that revered forgiving musical compression of tube optical circuitry with speed and control more closely associated with modern dynamics processing. Hand wired to authentically recreate the sound of a