I have an NAD Monitor 7000 reciever. I've had it since I bought it new in 1990. For the last 6 years I have had it powering a set of Bose AM5 series II speakers off one set of channels, and a set of Advent Legacy's off the other two channels.

About three months ago, My housemate bought a new DVD player. So now this new DVD player is our "new CD player" as well. It is a Phillips DVD737.

Shortly after getting this DVD player, and hooking it up, the power amplifier portin of my NAD reciever shorted out and blew. I had it repaired w/OE components and it worked great again.

I changed the configuration of my system to this; I bought some cheap-o RCA "splitters" and plugged then in to the "pre outs" on the back of my reciever. One side of the splitter went to back to the recievers "main in" so I could still use the recivers power amplifier to power four spleakers. The other set of RCA's went to an external amp, which drives another set of speakers. SOOO, The recivers Power amplifier was is driving the Advent Legacy's, and a pair of pretty big, cheap-o Pioneer's. The aux amp is driving the Bose AM5's. Got that?

Last night I had a party. I was playing music moderately loud; 1/3 to 1/2 on the volume knob. Half way through the party, the power amplifiers in my NAD reciever blew again!! GRRRRR! So I lost power to the Advents, and the Pioneers, but the Bose's continued to play on (fortunately).

SO my question is, WHY IS THIS HAPPENING??? Does it have something to do with the DVD player?? Somehting else?? This is BS. I need to figure out why this is happening so it doesn't happen again. Thanks for reading and input.