Cartridge Impedance


I just bought a phono pre-amp that allows me to adjust the impedance of a MC cartridge. I was using 100ohms. Now I want to experiment.
Could someone tell me the effect the trebles will have if I lower or raise the suggested impedance. For example, If I raise the impedance will the highs be more prominent or less prominent? 
Thank you.
128x128jmh128

Showing 1 response by benjie

A higher ohm setting will increase the treble and decrease the bass, a lower ohm setting will decrease the treble and increase the bass. There is no correct setting it's a matter of personal taste.