Mr.Ho Auto Car High to Low 2 Channel Line Output Converter with Adjustable Subwoofer Level for Amplifier Black

SUBWOOFER CONVERSION – The item has the function of RCA high to low, it also can convert the high-voltage signal output of the amplifier or speaker to the low-voltage signal, improve the sound quality. ADJUSTMENT FUNCTION-- Provide the level gain adjustment. Use the adjustment rotate button, you can adjust the bass down without having to pull over and manually adjust the amplifier, very convenience. VERSATILE USAGE -- It can add RCA level input or output for speaker. As the single dial, it can match stereo precisely. Also it can add the amplifier to OEM system. NEAT PLUG CONNECTOR – Reasonable and neat power plug, it has the prefect bonding and contact stability. Provide clean and excellent sound. EASY TO INSTALL – Just connect the wire between the speaker and amplifier as the instructions.