I bought a complete Polk Audio home theater system several years ago. It included the PSW Powered Subwoofer. After I setup the system, the subwoofer immediately would pop randomly. I finally had to shut it off and haven't used it since. I should have seeked help when it first occurred, but I didn't. Anyway, what is causing these loud pops? What do I need to do to fix it? The subwoofer works, but the loud pops keeps it from being usable.
Any advice is greatly appreciated. I am a complete noob with sound systems, so be gentle!