The average human hears up to about 20,000KHz. The frequency response certainly does not determine how good a cartridge will sound, as Jvogt was saying.
Grado carts are quite good, but they can hum in certain rigs so beforeyou buy, make sure it will work for you. What arm and turntable are you using?
Grado carts are quite good, but they can hum in certain rigs so beforeyou buy, make sure it will work for you. What arm and turntable are you using?