I'm having a speaker setup problem with my Denon 2807 receiver. I'm using the Front A outputs for my main room and Front B for a set of speakers on my patio. I guess because of the difference in speakers, I am getting a vastly reduced volume level on the outdoor speakers. Does anyone know of a way to increase the power level sent to the Front B outputs relative to the Front A's? Everything in the manual seems to refer to balancing the Fronts in relation to the center/surrounds. I'm using the front B's for this because I'm using the Room 2 outputs for upstairs.