26 Windsordave 2 weeks ago Hello, Otter, new to the pages and enjoying learning more about Gretsch guitars than I ever realized existed. I've seen the term "mud switch" several times in my browsing the various pages, never heard it previously. Is it the tone switch or something entirely different? Welcome to all things Gretsch! Yes, the mud switch is in place of the tone pot/control. The up position sounds very dark/jazzy and the down position gives a bright tone. In the middle, it's disengaged. The vintage models with this mud switch tend to have a wider range of tone from the two positions than the newer models. Others with more technical knowledge between the old vs new can chime in with a better explanation. FWIW, it tends to be a love/hate view on this feature.