Pyle PLMRA430BT User Guide - Page 10

PLMRA410BT - Wiring Common Ground Type Two Speaker Output Mode Floating Ground Type *High and Low impedance inputs cannot be used at the same time. Note: Elite Series Ampshave built-in short circuit protection. If you mistakingly connect any speaker wires to ground, or positive power ( +) and (-) Wires short together, the protection circuit will operate automatically and cut-off output. In case of this, you must switch OFF the whole system immediately double check speaker wire connections and isolation before switching on the amplifier again. Elite Series Waterproof Amplifiers