At what Sound Pressure Level (SPL) do the IQbuds sound distort? Follow IQbuds produces 10% distortion at approximately 120dBA. Related articles Are IQbuds waterproof and what is their IP rating? How many decibels do IQbuds block? Are the batteries in IQbuds replaceable? Single Bud Use with IQbuds What is the audio frequency range for IQbuds?