What Is The Difference Between A Professional Amplifier And A Home Amplifier?

- Feb 21, 2020-

What is the difference between professional amplifiers and home amplifiers, I believe many audio enthusiasts have seen the electrical schematic diagrams of professional amplifiers and home amplifiers. If you only look at the electrical schematic, it seems that there is no obvious difference between professional amplifiers and home amplifiers. From the point of view, both are used to drive the speaker playback, which seems to be the same. From the perspective of performance indicators, the basic performance indicators of this power amplifier and professional amplifiers are similar. In fact, there are many differences between professional amplifiers and home amplifiers.

Professional amplifiers generally require long-term and continuous operation under high power conditions. Therefore, professional amplifiers require large power margins, high reliability, small temperature rise in the output stage, and good circuit stability. To meet such requirements, amplifiers have special considerations different from home amplifiers in terms of design, materials, and morals. For example, the capacity of a professional power amplifier's power circuit is often based on the actual consumption of the amplifier, plus enough wealth, so it is much larger than the capacity of a home amplifier with the same nominal power. The high-power devices of professional amplifiers also often choose specifications with maximum current and voltage higher than the rated value. The output stage radiator also uses large exposed radiators to facilitate heat dissipation and ensure that the temperature rise during inequality time is relatively high. low. If we look at professional power amplifiers and home power amplifiers with the same rated output power of 100W × 2, we can find that the radiator of professional power amplifiers is much larger. This is because although the nominal rated output power of a domestic power amplifier is 100W, in actual use, it tends to work only in a small output power state (generally uniform power is about 10W). It is only possible to reach tens of watts of output power in a short time only when burst peak signals of certain music are played. Therefore, the actual workload of the output stage of the home power amplifier is relatively light. Professional power amplifiers with a rated output power of 100W often reach a near-full power state in actual use, and the actual workload is heavier, so the heat generation of the output stage is more severe, and a larger radiator is required to perform well Of heat.