SUBWOOFER CABLE CONVERSION: Car audio speaker level converter wiring adapter allows to add 2 channel or mono amplifier or subwoofer to existing factory or aftermarket car stereo kit, it also can convert the high-voltage signal output of the amplifier or speaker to the low-voltage signal, improve the sound quality
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
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
EASY TO INSTALL: Use this adapter when adding an amplifier to a factory radio that convert the radio's speaker level output to the lower amplifier RCA level input, Just connect the wire between the speaker and amplifier as the instructions, Tap into a speaker wire and it senses the signal, and turns on a relay to send power to the amp
PACKAGE CONTENT: 1Pcs x 2-Channel Line Output Converter for Subwoofer & 1Pcs x Cable (as is shown) The ideal solution if your headunit does not have RCA Phono outputs,enables an amplifier to be fitted into your OE Headunit in the vehicle