Mojo, I think everyone is well aware that the amplifiers are separate. There have been several receivers offering this feature for quite some time.

However, there are a few limitations. Those extra 2 amps are hooked to the same power supply as the other amps. But even if you had 2 physically separate 2 channel amps, you would not have a doubling in power; each amp can only send its maximum. That doesn't mean that they are additive.

I am the Doctor, and THIS... is my SPOON!