I have an Denon AVR-X3000 to power some nice Polk Speakers. Problem is, I have multiple monitors and TVs in my living space. Two TVs and two monitors to be exact (All HDMI). Where should I begin to look at adding a matrix? Are there any products that work in tandem with the Denon? Or will it be a completely separate unit? Recommendations on how to handle would be greatly appreciated. Thanks!