My subwoofer is producing practically zero sound. If I hold it in my arms I can just barely make out a vibration, but that's it; and the input audio has plenty of bass so it should certainly be doing something.
I have a Pioneer VSX-D509S receiver that is driving two Cambridge Soundworks "Ensemble" speakers and an "Ensemble II" passive subwoofer. Two positive/negative pairs of wires are connected to the receiver, one to the left speaker and one to the right speaker. And a pair of wairs connects each of the left/right speakers to the passive subwoofer.
I thought about trying to plug the subwoofer directly into the receiver, instead of having it take the same signal as the left and right speakers, but, if I understand it correctly, the manual specifically says not to do that. All of the speakers have "6 ohms" printed on it. In the receiver manual it says "Use speakers with nominal impedance of 8-16 ohms". I presume that each of the left/right speakers and the subwoofer combine to form two circuits of 12 ohm impedance, but I dunno.
I'm quite clueless as far as stereo systems go (this being my first), so I'm hoping I just made a stupid mistake. I'd appreciate any advice on things I could try in order to fix this.
Cheers,
Jeremy