Amelia, I am very very sorry to hear about your father. I had always wondered what happened to him.

You've been given very good advice already. The easiest thing you can possibly do is use your Denon's built-in Audyssey calibration and the set-up microphone. I have found Audyssey gives me great results with a 3-position measurement - one at the main listening position, one close to my left ear and another close to my right.

Let us know how it all works out.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated