Dear Thom: Great audio hardware you have and in a dedicated romm!!!!!!!
Maybe you are really lucky and your room don't need any treatment.
My experience told me that almost any room needs some kind of treatment. This room treatment is a must to have for you really can know and can enjoy all the quality music/sound reproduction that your audio system could give you.
The room link in the whole audio chain is extremly critical an important for to get the best of the music at home. My advise is that you take a little of your time/money for do that job, you will be on music heaven when you achieve that target.
Regards and enjoy the music.
Raul.