In addition to the difference in supply voltage, 5V power amplifier and 12V power amplifier also differ in power output, sound quality performance and application range. In general, 12V amplifiers have a higher power output, which can drive larger speakers and provide higher volume. The 5V amplifier is suitable for scenarios with low power requirements, such as headphone amplifiers or small speakers. In addition, due to different supply voltages, the circuit design and audio processing methods of the two may also be different, thus affecting the sound quality performance. Therefore, when choosing a power amplifier, it is necessary to choose according to the actual needs and equipment matching.
The design space of power is not the same. 5V power amplifier It is not possible to design a large power output amplifier. The application is different. The 5V design is mainly powered by a USB socket. The 12V is mainly powered by batteries or power converters.