Description: Eliminate ground loop humming and buzzing noise between an audio source and an amplifier. When used with car audio, this isolation circuit goes between the head unit and the amp or EQ. Filters out DC current in the signal path Connectors: 2x RCA Male, 2x RCA Female Passive in-line device Specification: Current Rating: 20A Rated input: 30W Peak Input: 60W Package Includes: 1 Piece Ground Loop Isolator