I did a search and didn't find an answer. Have a new PSW10 hooked up with a low-end Sony receiver that does not have a subwoofer output. So, at this point, I have the subwoofer hooked up using the speaker-level inputs, which works. However, I'd like to retain the full frequency spectrum going to the stereo speakers and have the PSW10 supplement the lower frequencies, as opposed to a cutoff where all the lower frequencies, based on the cutoff, go to the subwoofer. Soooo, the question: The Sony allows A and B speakers. Can I run a speaker-level input to the subwoofer without any output load going back to the speakers, and would doing so cause any unbalance to damage the subwoofer electronics? TIA!