SUPERIOR SOUND: Each speaker keystone jack supports 1 speaker each and accepts up to 12 AWG speaker wire, to deliver that crisp high-fidelity surround sound experience for your home theater. EASY INSTALLATION: Each speaker wire keystone port has matching female to female spring loaded speaker terminal connections. It's as simple as push n' play. No tools or additional hardware needed to install your surround sound speaker wires into the speaker ports. diyTech Speaker Keystone Jack – Spring Loaded Speaker Jack for Keystone Wall Plate, Female to Female, for Home Theater Wall Plates