What is the impedance of a pickup?
Some early design of pickups the impedance was rated in ohms and 400 or 1000 Hertz (Hz). The majority of guitar and bass amplifiers are designed for high impedance guitar and bass pickups. Low impedance pickups often have a step-up transformer so the player can use low impedance directly into a recording board or high impedance into an amplifier that will be recorded by mike. Impedance is determined by the gauge of wire, number of turns and winding area for a desired output. The majority of pickups manufactured are considered high impedance pickups. Gibson guitar company offered a few guitar models with low-impedance pickups. Many bass pickups also have low impedance pickups with pre-amps to boost and enhance the signal.
