The Pro-Ject Phono Box RS arrived today.
It has both balanced and unbalanced inputs/outputs and plenty of adjustment for impedance, capacitance and gain, which should cater for most cartridges, whether MM/HOMC/LOMC it also offers RIAA or DECCA EQ curves.
It's powered by a wall wart style dual symmetrical SMPS of +/- 18Vdc so there is an upgrade path using a better power supply if I feel the need.
I will give it a few days running, before making an assessment of its performance.