1. Would I ruin any of my epuipment if I took a y-adapter and plugged into my subwoofer input and connected a subwoofer on each connection thus running two subwoofers out of the same input? 2. Again, would I ruin any of my equipment if I connected speakers within speakers? What I mean is, if I were to take some speaker wire and connected to my main speaker (which is already connected to my reciever) and use that wire to connect another speaker, would that ruin anything? Like I said, dumb, but interesting questions.