Blurry

Hey guys, Just bought a used RW-10D - looks like its in great condition but for some reason it just doesn't produce any bass. The subwoofer does turn on when I plug it in, but none of the inputs seem to work - I've tried both the Sub line, the line outs, and the speaker wire methods to my receiver but to no avail. I even tried the line outs into my ipod via coaxial to 3.5mm adapter, but I could not get any bass out of the subwoofer. Just wondering if the subwoofer is shot - weird considering it does power on and the light stays green. Appreciate any inputs -thanks!

anyone?

Hey there, I'm currently stuck between either a pair of RB-15s or a pair of RSX-4s. Since this is my first "real" Klipsch purchase, I would like to know which is better. These speakers will be placed in a mid-sized living room, but there is a chance that I might move them into the bedroom. Any input? Thanks