'Ancient Rig CK 0' is a rig pack available on our download page and does include just one rig. This rig 'CK 0' is an historic artefact - the first Kemper Profiler rig that ever has existed.
It has been created by Christoph Kemper on January 20th, 2011 and is not (!) based on any amplifier/cabinet profile. The sound itself goes back even to the beginning of 2005.
This rig is the default sound for the digital sound processor. It's also preloaded into any 'empty' performance slot, where it shows up as 'Initialised Rig'.