MJUC jr. is a dynamic variable-mu compressor designed to deliver rich character and depth to your audio. It excels at both smooth leveling and creating pronounced pumping effects, making it suitable for a wide range of mixing applications. The plugin features two gain stages and an interstage transformer simulation that together produce a lively and immersive soundstage with natural warmth.

The compressor includes a unique three-position timing switch that adjusts attack and release times, as well as the slew rate of the transformers. This control also influences the harmonic content generated by the circuitry, allowing users to shape saturation and tonal qualities with precision. This design approach ensures that MJUC jr. imparts a distinctive sonic character reminiscent of classic analog compressors while maintaining flexibility in modern production environments.

MJUC jr. combines elements from both the Mk1 and Mk2 versions of its larger counterpart, blending the dense, natural compression style of early variable-mu designs with a more forward and harmonically rich sound characteristic of 1960s compressors. Offered as a freeware plugin, MJUC jr. provides an accessible and high-quality option for producers seeking authentic analog-style compression without cost.