I bought the JBL Platinum speakers as part of my Compaq PC system. The sound is great at high volumes, with low distortion. Very suitable for Indian music.I have not yet tried the input on the front of the master speaker. In fact, I did not know what that jack was for!! There was nothing about it in the documentation that came with the PC. My guess was that it was an ouput - perhaps to connect a powered woofer. I wish there was such an output.