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1. Speakers Connect speakers/subwoofers to these terminals. Be sure to check wiring for properpolarity. Never connect the speaker cables to chassis ground. 2. +12 Volt Power Connect this terminal through a fuse or circuit breaker to the positive terminal of the vehicle battery or the positive terminalofan isolated audio system battery. 3.
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full frequency speakers , please switch to full mode . When switched to full mode , the filters will not function. warning : use buttons and hpf knob correctly to prevent low frequency damage to tweeters. 13. FREQUENCY CONTROL ( PX4 , PX4R , PX2R ) These switches work with the crossover.
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