1000k Ω: Offers maximum brightness and clarity. It is often used in Jazzmaster or Jaguar guitars, or in special applications.
100k Ω: Special resistance values mainly used in pedals (e.g., Wah Crybaby), active bass EQs, or amplifiers.
250k Ω: The classic choice for single-coil pickups (Single-coils / Strat, Tele). It rounds off the high frequencies, giving a warmer and sweeter sound.
500k Ω: The standard choice for humbuckers. It keeps the high frequencies clear and prevents the sound from becoming "muddy".
50k Ω: Special resistance values mainly used in pedals (e.g., Wah Crybaby), active bass EQs, or amplifiers.