The Ebtech Hum X filters out unwanted voltage on the ground line that can cause ground loop hum. Simply place the Ebtech Hum X on the end of the power cord of the equipment that has a Ground Loop and plug the Ebtech Hum X into the wall outlet. Ground Loop is gone and audio signal remains intact. Easy to use, easy to install, absolutely safe and completely effective! Manufacturer: EbtechModel: 242743SKU: I152415-N-0-WHXDUPC: 614859201015We are Chuck Levin's Washington Music CenterSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.