Well, I didn't realize I had my receiver on yesterday when I unplugged the speaker wires out of my right surround channel when the + and - wires had touched and my receiver immediately turned off. I figured it was normal for it to turn itself off, but now the sound distorts whenever there is a high pitch sound, such as thunder or crowd noise, in the right surround channel. What happened? Did I blow that channel or something? It even distorts when I run the receiver's test tones in the right surround channel.The speaker is fine since I tried different speakers in that channel and all speakers distorted at certain pitches in that channel. Am I looking at a high cost to get this fixed? I don't have any warranty and the receipt is nowhere to be found. Any ideas?