I wouldn't even use the Marantz in the system, I doubt it is any better than the Yamaha.
I use Denon, but when listening to some speakers a few years ago I listened to the Marantz higher-end line and was very impressed. In A/B listening to $3,000 B&K the Marantz really held its own. That was driving very low ohm and difficult loads. In particular, i was listening to 4-6 ohm PSB's and Martin Logan Clarity (I think). The ML are power hungry and the Marantz did a great job. On the low ohm PSBs it just sang. I have Marantz on my short list of replacement for my 3300, although another Denon will probably win the race. Two cents...
