| 4-Channel RCA Audio Anti - Interference Kill Hum Engine Universal Blue Description: Eliminates humming and buzzing due to ground loop issues. Filters out DC current in the signal path. Gold plated connectors. Rated input: 50W. Peak input: 100W. Specification: Material: Size: Approx.622x48x25mm/24.49x1.89x0.98 Inch Package... more | | $17.03 $13.26 FREE shipping go to store |