Beat-Sonic TL-46 Hi-Lo Converter for sale! Selling due to vehicle replacement; I was using it until last month. Perfect for factory navigation systems or aftermarket navigation systems without RCA outputs. - This is the Beat-Sonic transducer line cable (Hi-Lo converter), model TL-46. - This product converts 4-channel speaker output to 6-channel line output. Since the speaker LINE can be converted to RCA, it's easy to set up a power amplifier, and the cables can be neatly organized. It also has a dedicated subwoofer output linked to the rear speakers, allowing you to build a full-fledged system with just this one unit. - 2-channel input, 2-channel output. Aluminum body resistant to external noise. It's used, but in my opinion, it's in good condition. Please refrain from purchasing if you are sensitive to used items or if you are looking for new-like quality. If you have any other questions, please ask in the question section.