Calculate voltage loss and treble loading when connecting a guitar pickup to an amplifier. Enter pickup DC resistance and amp input impedance.
A low amp input impedance relative to pickup DC resistance causes signal loss and treble rolloff via voltage divider effect.
A ratio of 10:1 or higher (amp:pickup) ensures minimal loading. Most amps have 1MΩ input which is ideal for 8–15kΩ pickups.