The Stereo Manley Variable Mu® Limiter Compressor is the glue that holds your mix together while crystallizing it into a professional, final product. It takes your track from song, to record. An all-tube, all transformer, all-American legend. And now, it’s time to celebrate its 30th year on the planet with a limited edition T-Bar XXX version that offers ten critically tested tubes and four custom wound transformers—everything you love about the Variable Mu, with the expanded superpower of extreme limiting. This mod makes the Variable Mu even smoother when pushed past 6dB of compression. Using two matched 6BA6 pentodes strapped as triodes makes this choice better than an unobtainable and unsortable 6386. Only 50 units are available, handcrafted from the engineers at Manley—to you.