David Brian Bermudez (born July 12, 2002), known professionally as DX (also known as Top1DX), is an American record producer. He began making beats at 14 and gained early recognition in the late 2010s for his dark, experimental trap sound. His production earned placements with artists tied to Young Stoner Life, including Strick, Lil Duke, Young Jordan and T-Shyne.

In the early 2020s, DX began shifting toward executive production, releasing music in collaboration with artists while developing his own sound and aesthetic. In 2025, he founded Top One, an independent label and creative outlet for his work as both a producer and executive. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.