I agree with Espo. You have a nice assortment of components so I would first question the source material and your listening room. Your SF's are not very efficient but you are using a subwoofer so the Rotel should have plenty of power for your speakers.
Most CD's do sound compressed. Your word metallic could also be construed as cold or clinical. Couple this with a highly reflective room full of hard surfaces, and this could be your problem. How are your speakers placed relative to the listening position? Speaker placement as absolutely critical for a great sounding system.
Finally you say your CD player is the most recent acquisition. What did you use for a source component before that? How did you like the sound of your system then? To your ears, was it better, worse, the same? Start asking yourself all of these questions first before you attempt wholesale changes to your equipment. Like I said - you got pretty good stuff right now. Good luck.
Marantz PM15S2 LE, Oppo BDP-103, Simaudio Moon 100D DAC
VPI Traveler V2 with an Ortofon Rondo Blue and Simaudio Moon 110LP, Technics SL-1400 with an Audio Technica AT-14sa and Pro-ject Phono Box S
Dynaudio Focus 260's, Rel T-1 and a Panasonic TC-P54S1.