Thanks for the replies. No the Denon doesn't click off from a dry start. As a matter of fact, at the lower and moderate volumes, the Denon works fine and sounds good. It is only when I increase the volume above the moderate level that the receiver clicks off. The receiver has a lot of space on all sides, so I don't think that ventilation is a problem.

As far as some of the speakers being 4ohm, I suppose this is possible even though the system has an 8 ohm rating. This is what I first suspected as being the problem, but I am not sure how I can test each speaker for their impedance level. If this is the case though, will the M200's be able to carry the 4 ohm load at the higher listening levels?

I have the speaker wires connected to the receiver with bare ends, tightened down at the receiver's binding posts. I have double checked these connections, and they seem to be fine. If I did have a stray wire touching the chasis, wouldn't it short out at the lower volumes as well? Or should I eliminate this as a potential problem by connecting with banana jacks?

As a side note, I have a Yamaha RX-V2400 connected to my upstairs living room system. I brought the Yamaha down to the home theater and connected it up to see if that would work any better. However, the Yamaha did the exact same thing and shut down as soon as the volume was increased beyond a moderate level. I also noted that the internal fan in the Yamaha kicked on a lot as the volume was increased.

The center channel speaker is the largest speaker in my system, and since most of the audio output goes to that channel, do you think that a single M200 hooked up to that channel will take a sufficient amount of load off of the Denon, or should I just get the three M200's for each of the L/C/R speakers for the improved sonics and the free shipping when buying 3?

Thanks