Just to add to AG, #1)is called an internal bi-wire, uses
single cable each speaker that has 2 connectors on the amp end and 4 connectors on speaker end. This is a compromise solution to save money. #2) uses two seperate runs of speaker cable for each speaker, 4 connectors each end. This gives full seperation and maximum detail retreval, also more
expensive. Shotgun is a variation where two seperate runs of cable are joined only at the amp end to allow 2 connectors to be used.
single cable each speaker that has 2 connectors on the amp end and 4 connectors on speaker end. This is a compromise solution to save money. #2) uses two seperate runs of speaker cable for each speaker, 4 connectors each end. This gives full seperation and maximum detail retreval, also more
expensive. Shotgun is a variation where two seperate runs of cable are joined only at the amp end to allow 2 connectors to be used.