Surround sound stops working on Kenwood VR-615
Hi, I'm having an issue that I'm hoping someone can help me with. As the title says, I have a Kenwood VR-615 receiver and it seems the surround sound has stopped working. The display is detecting the incoming signal is Dolby Digital or DTS with surround sound, but the receiver isn't outputting the sound. It has worked intermittently and both speakers have fired when it does, so I don't think it is the speakers themselves. At one point, I did have 20+ gauge speaker wire used over runs of 20-30 feet. Would this have caused too much impedance and burned out those channels on the receiver?