Audio interface connector with ground lift, kit, system and method of use

A balanced interface audio connector for connecting together two audio devices with a cable that has a pair of conductive differential lines within a shield, said connector including

• a control circuit comprising an electronic filter and a manually operable switch,
• said switch having a first position deactivating the electronic filter and allowing the shield to maintain electrical continuity through a connection element and a second position activating the electronic filter and disconnecting the shield from a connection element of the shield and connecting the shield through the electronic filter prior to reconnection with its connection site

A balanced interface audio connector incorporated into an audio device, said connector including

• a control circuit comprising an electronic filter and a manually operable switch,
• said switch having a first position deactivating the electronic filter and allowing the shield to maintain electrical continuity through a connection element and a second position activating the electronic filter and disconnecting the shield from the shield's connection element and connecting the shield through the electronic filter prior to reconnection with its connection site.

A system of connecting together two audio devices by a cable that has a pair of conductive differential lines within a shield, each audio device having a metal chassis with an internal ground and a power cord terminating in a plug for connection to a socket of an AC power line, said devices to have their respective plugs connected to different sockets, whereby, upon connecting the respective plugs of the devices to different sockets of the same or another AC power line, a ground noise can flow and create a ground current loop,

• said system including means for connecting one end of the shield to the metal chassis of one device and another end of the shield to the metal chassis of the other device through a balanced audio connector including means for creating a ground lift to safely break a ground current loop between the connected audio devices.

A method of connecting together two audio devices by means of a cable that has a pair of conductive differential lines within a shield, each audio device having a metal chassis with an internal ground and a power cord terminating in a plug for connection to a socket of an AC power line, said devices to have their respective plugs connected to different sockets of the same or another AC power line, whereby ground noise can flow and create a ground current loop,

• said method comprising connecting one end of the shield to the metal chassis of one device and another end of the shield to the metal chassis of the other device through a balanced audio connector including means for creating a ground lift to safely break a ground current loop between the connected audio devices.