JaiseS

Hello Klipsch friends. My first time on here. I bought a RSW-12 last week used but in great shape but the volume knob on the right is not working. The sub sounds great but I can't adjust the volume on the big rubber knob. When I turn it up and down, no difference, but when I turn it to around 12 or 1 o'clock, it fades down just a small bit. Can I fix this myself? Is this knob hard to get off? Please help! Thanks!!!