Yesterday I was watching a video tape of a program I had recorded earlier and I noticed that my right speaker was putting out a very distorted sound. I switched to TV and it didn't sound distorted in any way, so I thought that maybe one of the wires from the RCA Y adapter/splitter I have connected to the mono out on the back of my VCR was loose. I reached around the back of my VCR to check, and it was in fact loose. So loose, that when I touched it, one of the wires connected to the adapter fell out. I then decided it would be wise to move my entertainment center so I could get behind and tighten any loose connections, but as soon as I let the y adapter go, my receiver (Yamaha RX-V630) shut off by itself. I turned it back on and a message flashed in the display that read: "Check sp wires." I turned the receiver off, unplugged everything, and went behind the entertainment center to investigate. What happened was the unconnected end of the y adapter from the VCR had made contact with on of the banana plugs for my speakers, and it was still connected to the VCR! Could I have damaged my speakers or my receiver in any way? I double checked all connections and turned everything back on and all seems to sound fine, but nonetheless I am a bit worried.