Upgrade Source?

My system consiosts of Harbeth Super HL5 speakers, Pathos MKII Classic integrated and denon DVD 291o for source. With both the speakers and the integrated I noticed huge improvement( from Klipsch Heresy and Creek 5350Se). Now I am thinking about source upgrade and wondering if I will see the same noticeable improvement.

I would like a player for both SACD and Redbook but don't care to connect to my video. I have read about Ayre C5xe, Cary 306 SACD, and some modded Denon players. I am fairly new to the audiophile thing and would appreciate your advice.