I have an older Loricraft PS in use for my 301. Although we have very clean 230V/50Hz here in Germany - compared to the US, the PS has a major impact on sound quality: all the bass region cleans up, timing gets considerably better, and the faint hint of one-note bass, which might be detectable on one or other record, disappears completely.
best regards, Hartmut
best regards, Hartmut