Join Date: Feb 2009
Location: The Dandelion City
If the receivers are stacked, the top receiver could be overheating. Receivers need lots of ventilation. As suggested, it could be a short (maybe bad wiring) or it could be low speaker impedance. Some receivers do not work well with low impedance speakers.
How are the receivers connected? The simplest way would be to run a stereo cable from a line out on the VSX-1020 to a line in on the 9040-TXH. The 9040 would then be set to EXT.Stereo to drive four speakers.
At 20 I had a good mind. At 40 I had money. At 60 I've lost my mind and my money. Oh, to be 20 again. --Scary