12 AWG(OFC) Power amp Banana Jack adapters, . New. Set of 4 wires. Price reduced, was $45. These adapters provide an ingenious solution to the challenge of marrying banana plugs to old-style speaker/amplifier terminals. I also have 14 Gauge available if 12 gauge is too big for your setup. This connects to your amplifier speaker connectors or speaker terminals and then you plug your speaker cables(banana) into these adapters. To see other Stereo Equipment I have for sale, type "RSTEREO" in the search box above. Connectors: Silver plated Banana jacks. Wire: 12 gauge Oxygen Free Copper. These are soldered with silver solder. Overall length: 7 inches. Cable sheath: Nylon Flexo, Black