Huh? what? u want to do what?
People hook passive speakers to receivers, and you want to connect this active speaker to the receiver, through the network?
This active speaker is designed to work stand-alone, without the receiver. Through the network, u can directly talk to it via Airplay (iPhone), DLNA (a PC/laptop).
The Marantz is also Airplay and DLNA capable, but YOUR PROBLEM IS, both of these pieces are PLAYERS (in DLNA parlance). They take signal IN. In any system, there is a SOURCE signal (iPhone, PC, BR, turntable etc) talking to a PLAYER. You seem to want your Marantz (player 1) to talk to Air One (player 2). A PLAYER CANNOT TALK TO ANOTHER PLAYER.
In conclusion you have 2 pieces with duplicated functions. Either keep Air One if that satisfies your need. If you HAVE to have Marantz, then use normal L+R Passive speakers and add a self-powered, stand-alone sub.