Hosa HEM-331 Hum Eliminator for Pro AudioThe HEM-331 two-channel hum eliminator is designed to eliminate hums and buzzes by converting unbalanced lines to balanced lines. It utilizes passive transformer circuitry, eliminating the need for a battery. Each channel features a ground lift switch for troubleshooting interference associated with ground loops.
CALIFORNIA WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.