Try the rca/in-line Dakiom's (I think they are 'R' versions). I found them to be even better at what they do.
I have tube amps, inherently little feedback used, so the A versions I have are useless I've found. What amp do you use - if it's solid state that's probably why you are happy with them.
Plug one into your CDP and tell us what you think? I'm not sure I can go back to any CDP without one, frankly (tho it didn't work with my old MSB Gold Link III DAC, so it doesn't universally work with all)
John