I have a pair of RT 800's. I've been trying to figure out a problem that I've had for about two years now and just discovered this forum. My receivers keep "Overloading" when ever I start to turn the volume up or keep it at a medium to low level for a while. I've tried two receivers, the second I bought because I thought the first was fried!! After many conversations with different reps and tech guys, I ended up testing the impedence with a multimeter. Connecting the leads to the wires running to the speakers(individually), I got 4 ohms on both. BTW, the jumpers are on and I am using 14g wire.
What I was told was that if there is not enough impedence, the cpu in the receiver works too hard to maintain current and subsequently overheats. Now I was told if I get anything drastically under 8 ohms, I have a fried coil. But I can't believe that both speakers are blown. They both sound great! No distortion, no cracking, and good, solid bass on both.
The specs say 8ohms, why am I getting 4? I'm lost, please help.