Electro-acoustic amplifier unit for training partially deaf people - has amplifier for each ear and coding switch in each channel for matching to individual

摘要

The electroacoustic amplifier unit, for treating or training groups of people or individuals who are hard of hearing, has the electroacoustic properties of its amplifier adaptable to the acoustic characteristics of the ears of the person using it. The amplifier has two channels, one for the right ear and one for the left ear. Each channel has a coding switch to adapt to the individual ear. The coding switch alters bass, treble and volume.