My set up is Naim (Nait XS, CD5x, Flatcap2x, Stageline) and Neat Motive 2. The effective mass of the Satisfy tonearm is about 9 grams, the Rega RB300 about 11,5 grams. Rega is very safe regarding specs. I cannot find information about the Exact compliance. But if it's high at about 15-18 the RF should be a safe 10 Hz, but im not sure.