I suppose like anything, it's equipment dependent and certain cartridges like specific impedance. As I stated, the AT20ss seems to enjoy either 47K or 22K ohm input. I know that if it were to go any higher than 47K, it would be far too bright sounding. If I have a recording which is too emphasized on the upper end, I drop the loading to 22K and it really mellows out. That is what is so nice about the PH 10, you can do it with the turn of the front knob.
I suspect the PSU10 power supply is a nice addition for LOMC as you are depending on a lot more amplification due to the low output vs. a MM with 2.7mv which requires far less, hence the signal to noise ratio is very different.
I suspect the PSU10 power supply is a nice addition for LOMC as you are depending on a lot more amplification due to the low output vs. a MM with 2.7mv which requires far less, hence the signal to noise ratio is very different.