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Note • The exposed conductor should be 5/16 inch (7 mm) to 7/16 inch (10 mm) long. – If shorter, it may cause a poor conductivity. – If longer, it may cause a short circuit. • Use a proper hex wrench for each terminal. – 4 mm: +B terminal and GND terminal – 3 mm: REM terminal and speaker terminals 2 Subwoofer system 2-subwoofer system (2 amplifi ers) 2-subwoofer system 4-speaker system plus subwoofer—5.1-channel (3 amplifi ers) Connection varies depending on the number of the speakers used in yo