I added SUT's - primarily the Cotter Mk2 and EMIA Silver SUT and I believe that my vinyl setup cannot sound any better. The SUT's added margin to the noise floor of the phonosatge and no longer have the hiss at higher volumes - it's dead silent. The ZYX Universe II X (~0.32 mV) and Gold Note Tuscany (0.24 mV) morphed from great to phenomenal cartridges after the addition of the SUT's.