"2) 1 pair Ultimate Bybee rca filters with 4 small Bybees slipstream purifiers. Connectors are Eichmann Silver bullet plugs. $300
These are meant to be connected to your interconnects, near the destination of your interconnect. For example, from your source to amp/preamp, then these are to be installed near your amp/preamp side.
The Ultimate version has a slipstream purifier on BOTH the signal AND ground connection. Excellent results o for digital audio data transmission (SPDIF from your DVD to your processor)."