I would definitely take the X4700H, that has the better preamp vol control IC, and a full preamp mode. The 6200 has much better built quality in general, just too bad Denon/Marantz has not upgraded that all important IC until around 2016 so the 6200 probably just missed the boat. This alone may not be important, but then there is the 8K/HDMI2.1, HDCP2.3, eARC, Apple Air 2 etc etc.. the list just go on..