A high quality step-up transformer is a good way to go. Lower quality ones can interfere more with the sound. Even Kondo-san of Japan's Audio Note Ongaku fame requires a special step-up transformer with his top line cartridge. He states that it can do what no phono amplification circuit can, when dealing with very low output cartridges.
That said, I'm sure that you'll find enjoyment with the Groove you purchased. It is one of the most highly touted solid state phono sections.
That said, I'm sure that you'll find enjoyment with the Groove you purchased. It is one of the most highly touted solid state phono sections.