What power cord did you use with the Opus? I tried it with a Shunyata black mamba and it was one of the sweetest CDPs I have heard. The Waida 861 basic was better, more refined sounding. The Chord DAC 64 is an excellent DAC and it will sound clearer that the Electro CDP but the Electro will still have one of the widest soundstages. You also might see if you can find a Tube Technology DAC 64 also. Then there is always the excellent Audio Logic 24MXL which is better than the Wavelength in all areas.
Happy Listening.
Happy Listening.