I have never known the Phasemation Cart' Model.
I am going to suggest it was a higher up the range model, maybe the 2000 as the resident system used is approx' £200000, using Soulution Amp's and Maxonic Field Coil Speakers.
The DS Audio Cart' demo'd was claimed to be their most expensive from this period of time, I again assume the Grandmaster.
I have also had a very long demo' of a Phasemation EA 350 Phonostage used with Valve Amplification and QUad ESL's and have been left very impressed, it is one of a few SS Phon's I have developed a real liking for, and would/still recommend it as a a model worth receiving a demo' if a SS Phon' in the $4K range was of interest to others.