Purchased my surround sound system, with Polk speakers, 5.1, a Denon DVD player (Denon DVD-2910) and a Velodyne Subwoofer, SPL-800R. I finally was able to get sound with the TV (Samsung HDMI DLP) without using set-up on the AVR. I am using a HiDef cable box. I tried afterwards to do a setup per the instructions. One problem is that Denon does not supply a mic. for the Auto setup program. Velodyne did include a mic to for their equalizer setup, which worked perfectly. Since the mic connections are the same I tried to use the Velodyne mic., with the Denon AVR, but to no avail. Is there a problem with impedence or is it that only a Denon mic. will work? Of course, I think for the price, Denon should include a mic. I tried set up again, several times, and now I cannot even get the TV sound to come over all the speakers (as all 5 speakers did before). My remote only works for certain inputs. I am at a loss what to do to get the setup correctly and get all the components to work. The DVD player did play a CD, but only through the RF speaker. A DVD did not show, at all, even using different TV inputs. I am using a HDMI to DVI connection from the DVD player to the AVR. Wow, am I frustrated!