Have a Marantz 7200 that currently drives 5.1 for audio but would also want it to drive 5.1 for DVD too. Cutting a long story short the speakers for audio are in their optimum position but this is not the same for watching DVD. Thought is to get a smaller set of AV speakers and speaker switches for the receiver outputs so that I can switch when needed. Anything to watch out for? Will it work okay? Any problems? The other thought is to get another amp or a powered AV system. Thanks in advance.