Feature:1. Function: This two channel level adapter converts your signal from your factory amps to enhance your bass output with high efficiency.2. Practical: This dual channel line converter is easy to tune with main level, bass to reach your perfect bass frequencies that you are targeting.3. High Performance: The adapter brings out even more bass output, and will avoid the interference of the conversion inside the amp.4. Easy Installation: Simply connect the stereo's speaker wires to the line output converter's inputs, which is practical and energy saving.5. Universal Fit: Suitable for your vehicle equalizer, amplifier, stereos system. Also works with home audio equipments like theater setup applications.Specification:Item Type: High Low Impedance AdapterMaterial: ABSFitment:Universal fit.Package List:1 x Converter