I was also wonderin if Mixbuss editor could be made to look like LinuxDSPArdour. Now THAT would be eye candy.
In theory there's nothing to stop Harrison doing something similar (the source code for the custom build is available, in accordance with the GPL) but it is not possible to add the editor GUI tweaks to ardour without re-compiling, which, in the case of Mixbus is not possible as the Harrison DSP is proprietary.
Is it like analog to software algorithm-type emulation like ampisms? Or something else
I believe the Harrison DSP is an algorithmic software emulation of their console processing, so I would imagine the EQ / Dynamics would behave in a similar way to the real hardware (obviously Harrison would be able to clarify this)
OR plugins like linuxDSP and others for a wider range of processing options
Mixbus is compatible with a whole range of plugins, the linuxDSP plugins are tested with Mixbus, so you have the option of either using the built in Harrison processing or other plugins (as the lead software developer for the linuxDSP plugins, and someone who was previously a software / hardware developer for SSL - I could say there might be some 'classic' console 'DNA' in the linuxDSP plugins too)