The audiophile RFi kit is specifically designed to suppress audio interference triggered by Radio Frequency Interference problems experienced in typical audiophile systems using a tuner/preamp/receiver, turn table, CD player and speaker system. The ferrite filters are
selected to eliminate RFI from 1 to 300 MHz. The filters are easy to
install, don’t require modification of the protected equipment and work in
almost all cases.
The Audiophile RFI kit contains a a 4 ring filters for the AC power cord and 8 snap-on filters (4-1/2" ID, and 4-3/8' ID) for the device interconnect wires as well as the speaker wires.