Synergistic ResearchHi Def Grounding CableusedSynergistic Research High Definition  Ground Cable HD Grounding for Grounding BlockTwo of them available. Price is for each cable. You are basically getting “buy one get one free”! These are terminated with the following:XLR Male (one cable available)XLR Female (one Cable avail...200.00

Synergistic Research High Definition Ground Cable HD Grounding for Grounding Block [Expired]


no longer for sale

Two of them available. Price is for each cable. You are basically getting “buy one get one free”!
These are terminated with the following:

XLR Male (one cable available)
XLR Female (one Cable available)

See pictures. You can ground any equipment that has such inputs OR outputs.

Price includes shipping in continental US and PayPal fees.

From website:

During the development of the SR Ground Block we discovered that eliminating noise in a system is greatly enhanced when using the same 99.9995% pure silver "Air Strings" as found in our highest performance audio cables. Hand made in our California factory, Hi Def Ground Cables make the ground connection with a pure silver and graphene conductor in an air dielectric with a UEF Graphene Shield for maximum performance. Terminations are available for nearly every connection imaginable and all are treated with 1,000,000 volts of electricity. You've not heard your system until you hear it grounded with SR High Definition Ground Cables to an SR Ground Block.