Please do not change on a forum advice alone!
Having owned both arcam and cyrus gear I cannot think of 2 brands that are more apart! Arcam is smooth maybe slightly laidback and cyrus is detailed and definitely upfront. I must add that I haven't heard the Lyric but a very big change would be needed to let them come close in presentation! All in all, also considering the Hdmi port, the way you use it and the speakers you currently own, I strongly advice to stick with Arcam unless you demo with your speakers in your home and are blown away by the Cyrus.