It will be the speaker frequency output is converted to low-frequency (RCA) output to the car amplifier or subwoofer.
Features RCA output, this high to low impedance is used for the impedance convert of the added audio amplifier when the car audio has not RCA output.
For host (cassette player / card machine / CD / VCD / DVD, etc.)without low-frequency (RCA) output.
Simply connect this to your vehicles speaker output wires.
Helps to adjust power output from amplifier, ideal for home and car audio.
Equalize speaker output, helps to increase your audio quality.
Package includes:
1 x Car High to Low Impedance