Bean,
The interconnect between a phono amp and a pre-amp doesn't have much impact. But if you are using a MC step-up transformer, the cable connecting the step-up and the pre-amp will change the loading of the MC cart due to the effect of the transformer.
The interconnect between a phono amp and a pre-amp doesn't have much impact. But if you are using a MC step-up transformer, the cable connecting the step-up and the pre-amp will change the loading of the MC cart due to the effect of the transformer.