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Audio Fundamentals, Lessons From the Gig, Signal Flow and Systems, soundcheck-diaries, Stagecraft and Setup, Tools of the Trade, Troubleshooting and Oh Crap MomentsThe XLR Cable That Lied – Why a DI Box Fixed the 60-Cycle Hum
A drummer’s electronic kit produced a loud 60-cycle hum at one venue—but worked perfectly the very next day using the exact same equipment. What changed? In this real-world troubleshooting story from The Soundcheck Diaries, I explain why a simple 1/4-inch-to-XLR cable wasn’t enough, how a ground loop was created, and why adding a DI box…
Soundcheck Diaries 