Femto Clock version of DAC2 DSDse arrived yesterday. After run-in for a few hours, listened to it and it is significant improvement. DAC2 DSD SE has discrete power regulator and opamps with premium components on critical path. I'd say with Femto Clock help DAC2 DSD SE deliver sound quality at full potential.
Will have a better pair of speakers next week to better match with the improved source. Having a lot of fun in May upgrading the showroom set-up.