Yup. This is going to be a matter of personal preference. Personally, I am quite smitten with the Arcam sound, particularly with my ProAc speakers. My office system consists of the FMJ CD23T, FMJ T21, FMJ A22 and Tablette Reference 8 Signatures. Of course, in this setting, I do like my music a bit more laid back. At home, I have Theta Digital amps driving Thiels.
But that Krell is also a fine piece, and might float your boat moreso than the Arcam. Only your own ears (and brain) will tell you which is best for you...