Almost every component of the cello has an effect on the final sound, the strings certainly the biggest. There are several price ranges for the player to choose from, with the more expensive strings usually sounding better. Within a given price, it depends more on the player's preference. Below are the strings we have tried on MyCello. We highly recommend that you choose your strings when ordering a MyCello, so that we can already tune the instrument for the strings you choose when we make it.
For more information, see How do I choose strings?