With 108 db speakers you will hear hum/noise with just about anything... transformers don't generate any noise, only distortion (mostly 2nd order). That's the beauty about transformers... they are passive devices that both increase gain and reduce impedance - both desirable with MC cartridges. An external SUT may be less influenced by other EMF sources but it's hard to say if so, and how much. Shindo uses mu metal shielded phono transformers.
Last edited by junker; 12-07-2015 at 06:09 PM.
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