@paul_lindemann I'm beginning to think the same thing. I've added many things over the past month, and the over all improvement is small but improved in regards to layering. I think the biggest improvement was swapping out my interconnects and speaker cables. I'm going to pull the power conditioner when I have time and see if I can hear a difference with and without it.
When I demo'd my Luxman I used a $20k Aurender Streamer, so I suppose it is hard to expect a $4k CD player/DAC to give me the same sound. Either way, I do have it sounding really nice now. All of the little improvements have made a noticeable improvement over the past month.
For now I am sitting tight, but a Bricasti DAC is on my "to try" list.

