ZYX Airy 3 Best SUT

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.

Thanks Bnrlaw
This sounds perfect. I did not want to mess around with resistor loading.
Thanks again for the advice.

Doug, very interesting info on the output of Zyx. I happened noticed not by measure but by listening, Zyx Univ. (.24mv) is actually higher output than A90 (.27mv), since you mentioned a factor of 1.34, it makes sense.

I think to achive the best sound with Bent MU for Zyx 4ohm is to use 1:20 ratio, not 1:10. By design, S&B TX-103 on 1:10 is only good for cartridge with over 10ohm DC impedance not lower, info available on S&B website. If setup TX-103 on 1:10, no matter how hard to try on various loading, the result will always be less optimal. In the case of Denon 103, given it's relatively high DC impedance, only 1:5 ratio should be used on TX-103 which will defeat the purpose of a step-up.