I have gotten very good results with the two cartridges (Lyra Titan and Transfiguration Orpheus L) I use with my phonostage with a built-in SUT and matching has been no problem because it is quite insensitive to loading changes and no additional loading works well. A friend, who put Jensen transformers in his phonostage, gets really nice sound with it regardless of what cartridges he uses (Transfiguration, Lyra, Dynavector).
I think that Art Dudley of Stereophile is correct in suggesting that regardless of the theoretical ideal in matching gain and source impedance of the cartridge with particular transformer characteristics, it doesn't matter that much; as he put it: "I never met one I didn't like" (or something like that).
I don't see why transformers are any more specific in matching requirements to the cartridge and the rest of the component chain than ANY other type of phono amplification, whether it is active solid state or active tube stage.
I think that Art Dudley of Stereophile is correct in suggesting that regardless of the theoretical ideal in matching gain and source impedance of the cartridge with particular transformer characteristics, it doesn't matter that much; as he put it: "I never met one I didn't like" (or something like that).
I don't see why transformers are any more specific in matching requirements to the cartridge and the rest of the component chain than ANY other type of phono amplification, whether it is active solid state or active tube stage.