Why is cartridge loading important with a step-up transformer?

Cartridge loading is one of the most important factors in getting the best sound from a moving coil cartridge. The load affects frequency balance, damping, and overall tonal character. Too light a load can cause harsh highs, while the right value smooths treble and improves bass definition. With the MC1 moving coil step-up transformer preamp, you can fine-tune loading to perfectly match your cartridge. Our design makes it simple to experiment, so you can hear the difference for yourself. To make it even easier, try our online SUT Load Calculator, which helps you predict the effect of different resistor values and ratios on cartridge loading before you listen.