At what Sound Pressure Level (SPL) do Nuheara Products sound distort? Follow Nuheara Products produce 10% distortion at approximately 120dBA. Related articles Are Nuheara products waterproof? What is their IP rating? How many decibels do Nuheara Products block? What is the balanced armature drive used in Nuheara Products? What size are the Nuheara IQbuds™ and the charging case? What is EarID and how does it work?