A:Answer Per specs of the surround sound speakers, No, they will not work. I returned my 4A, bought a 3.1 soundbar.
Pair the LG Rear Speaker Kit to an SN10YG, SN9YG, SN8YG, SN7Y, SN7CY, SN6Y, SN5Y, SLM6Y, GX, SL10YG, SL9YG, SL8YG, SL7Y, SL6Y, SL5Y, SL4Y, SKM5Y, SK10Y, SK9Y, SK8Y, SK6Y, SK5Y sound bar for true home theater surround sound.