Perhaps I am misunderstanding what the front speaker A | B are for. Previously I had some basic kenwood speakers just hooked up to the front A speaker level outputs. I just purchased some infiniti Beta 50s and they have the ability to have 2 signals hooked up to them (4 posts per speaker), I took off the connector bars between the pair of + and - posts. and I ran wires from Front A and Front B on the receiver to the each of the speaker posts. (Left and right). I'm not getting any more power to the speakers if anything im getting less noise from them. how do I turn these outputs on?