Jafant, if you are asking what CD players we are using, the answer is almost none.
In our reference room we are using the T+A PDP 3000 which is an amazing CD player/SACD player and DAC.
We also have the Electrocompaniet CD players as well.
We get fantastic sound on the Innuous Music servers or an Aurender or Lumin, directly to our dacs.in our all purpose demo room systems from $2,000-$30k.
In our Reference Room we are using the Batis Reference.
We have a library over 20TB of music so we really don't need to ever get a CD out and spin one.
Hope that helps.
Dave and Troy
Audio Doctor NJ