I have two systems in my house, both have the 6000CDT on them. The key is the DAC. I have a Saturn audio DAC on the main system, and moved the Aqua La-Voce S3 to the basement. Both dacs are in the $4000.00 range.
My third system out in the garage, i had a Nad CD player out there with an IFI Neo DAC, $1100.00 DAC. When the CD player died my audio dealer told me to buy a good used dvd player. I found a Philips online for $10.00 brand new. Hooked it up, and it sounds as good or better than the NAD did. So the DAC is the key component in my opinion.