Yes I have, but I haven't compared directly to cdc which is in my opinion the best among the standard sb line.
Here is a review:
https://www.hifi-selbstbau.de/index.php/hsb-datenblaetter/hocht/lp9028n92tw-z009160
I find it to be very feasty, far more enjoyable at a very similar setup than the sdac/stc. It is not as easy to work with and has some anomalities at the higher frequencies but yet i would rate them as excellent. For sure different league than the sdac/stac.
https://www.hifi-selbstbau.de/index.php/hsb-datenblaetter/hocht/lp9028n92tw-z009160
I find it to be very feasty, far more enjoyable at a very similar setup than the sdac/stc. It is not as easy to work with and has some anomalities at the higher frequencies but yet i would rate them as excellent. For sure different league than the sdac/stac.
At home, where it stays now at a 3way build with monacor msh 116 as midrange at around 3200hz crossover point but tried also to my car using dsp @2500 24db/oct.