A pair of speaker connection posts available for either standard FR66W or bi-wiring FR67X techniques. Both versions use gold plated binding posts mounted on plastic recessed mounting plates. The posts will accept connections made via 4mm banana plugs spade terminals or bare wire to a diameter of up to 5mm. The bi-wiring version has 4 posts connected by two sets of gold plated jumpers. Standard Plate Overall dimensions 93 x 79 x 24mm Mounting hole 73 x 53mm Bi-wiring plate Overall dimensions 96 x 122 x 25mm Mounting hole 75 x 96mm