I have a Marantz nr1403 Slimline with HDMI. It sounds great, but I was looking to add more power. I came across a good deal on an outlaw audio 970 preamp, but it doesn't have HDMI. Would it be possible to use the outlaw to power the speakers and keep using the Marantz HDMI connection the way I currently am for my cable tv? New to the world of separates.