I have the same cartridge and use the Auditorium 23 sut that is ostensibly maximized for Ortofon SPU carts. It is a perfect match. Have also used lundahl/k&k audio sut's and jensen sut's as well as an inboard shindo sut in a Masseto preamp, but the A23 sut really really works well with the zyx.
As an aside, my K@K sut had resistors to vary the loading, but the A23, albeit at a little more than twice the price, bettered it without any resistors to monkey around with.
As an aside, my K@K sut had resistors to vary the loading, but the A23, albeit at a little more than twice the price, bettered it without any resistors to monkey around with.