Dear Kha - Like Goatwuss & Sbank I am curiously await the result of the Klyne vs. Zyx.
You may want to also consider comparing the Zyx to the JLTI phonostage designed by Joe Rasmussen (from Australia) in collaboration with Allen Wright of Vacuum State. It had gain switch for MM/MC cartridges and cartridge loading rca connectors. The newer versions (with a more substantial external PS option) of this phonostage are now made in Switzerland (at a considerable price increase). The earlier version uses a wall wart PS unit are still available from Joe while supplies last.
Here is the link to Joe's website --> http://www.customanalogue.com/jlti_phono_stage.htm
I also heard the Groove and had in my system for a considerable time. However, I felt that the Whest convincingly outperformed it in a number of sonic performance categories while also being more user fiendly. I still have the Whest and, in a recent session, a few of my local audio club buddies and I unanimously concluded the earlier JLTI version bettered the Whest in two different systems. Furthermore, during the same listening session, we also preferred it to the EAR 324 and was surprisingly very competitive to the Ear 88pb, a tube unit which is quite good.
