Not at all. Both receivers come with a microphone that allows setup in several different listening positions. Place the microphone on a tripod at the exact distance and height of your ears at the listening positions and let it do the work. Eliminate all ambient noises in the room that might affect the setup(children,a/c,washer/dryer,dishwasher etc.). If you feel the need to tweek the settings later, go for it. Most important, read the manual. The interface is exactly the same on both receivers.
Bill