Shelter says the loading for the 901 should be less than 100 Ohm, with different phonos I had good experience with 100, 150 and 1000 Ohm so it depends on the phono amps. VTA for the 901 is also important that different settings produce different presentation, I ended up slightly tail up. I have heard other users spent up to 3 months in getting the right VTA. I don't think tracking force is as critical, I am tracking at 1.65g.
I have had various vintage of LP12s over the last 20 years, I feel it is paramount to have proper support for the LP12, the best result I had is a Sicomin platform and I think other light and rigid platforms will also do.
I have had various vintage of LP12s over the last 20 years, I feel it is paramount to have proper support for the LP12, the best result I had is a Sicomin platform and I think other light and rigid platforms will also do.