Hegel Viking sound

My system is Dali Ms 4 speakers, Cary SLP 05 preamp, Pilnius SB-301 amp and Synergistic Research Foundation XL speaker wire and interconnects. Hegel Viking CD

I can't say about the Viking, but the Mohican I bought about 8-9 years ago seemed to take almost forever to break in.  Be patient and you will be rewarded. 

What CD player were you using before?

Burn, baby burn.  What interconnect are you using with the Viking?

It seems like it could be several things: DAC implementation - Different digital-to-analog converters have distinct sonic characters. Maybe it's the DAC?
Analog output – Not sure what others say about this unit, but it could b the op-amps, capacitors, and circuit topology producing an overly "revealing" upper frequency character.
Or... maybe the power supply design and/or clock precision and jitter. I bet Hegel is not messing this up, though.