8. What is the maximum input power of the JT7?

The maximum input power of the JT7 is 500mW. In fact, when the input power reaches 1W, the headphone output exceeds 135dB, which is already at the pain threshold of human hearing. According to the U.S. NIOSH safety standard, to avoid permanent hearing damage: the maximum sound pressure during one hour of listening should not exceed 94dB; once 127dB is reached, exposure longer than 1 second may theoretically damage hearing. Therefore, for hearing protection, it is recommended that users adjust the volume to a safe and appropriate listening level.