Since this part of the amplifier output transistor is regulating temperature it is also the part of the stereo system in a home stereo or in a car stereo system that needs the greatest exposure to air for it to run at a cool temperature. If not properly vented so that air can cool the basic transistor amplifier it can be one part of the stereo equipment that can burn out the transistor amplifier circuit.

The stereo system depends on the amplifier to process the signals and on the amplifier output transistor for quality bass, sending it to the speaker system in a form that picks up all of the sound that would otherwise not be heard by the human ear because the signal frequency would be too low for the ear to pick up on its own. This would also not be possible if it were not for the simple transistor amplifier regulating the voltage and temperature with germanium transistors and silicon transistors.

For these reasons it is important for the home stereo and the vehicle stereo that the right transistor amplifier is chosen to fit the rest of the stereo equipment because of the job it performs. The quality of music that emits from the speakers depends on the amount of power the transistor amplifiers can push the signals; regulate the voltage and the temperature without being overloaded. This allows the volume of the stereo to be at a moderate setting where each part of the music can be detected by the ear in a pleasing manner, rather than set loud where the music loses parts of the low frequency signal.