When using the PC-580RU speaker you must first select which speaker wattage that you would like to use. Choose either the Grey 0.25W, Blue 0.5W, Yellow 1W, White 2W or Red 5W wire and connect this to the Tr terminal.
You will then connect the output of your amplifier to the first set of (+, - ) terminals. From there you can continue on to the next speaker in the line via the lower set of (+, -) terminals.
Contact our Technical Support Team for more information or with questions. 1-800-263-7639 x 320