2019年2月18日星期一

What is the difference between a professional power amplifier and a home power amplifier?

A lot of amplifiers have seen the electrical schematics of professional amplifiers and home amplifiers. If you only look at the electrical schematic, it seems that there is no significant difference between professional amplifiers and home amplifiers. From the point of view of use, both are used to drive the sound of the speakers, which seems to be the same. From the performance indicators, the basic performance indicators of this household power amplifier and professional power amplifier are similar. How to distinguish between the two in life? Let me take you to see if there is a difference between the two.

First: The usage environment is different. The home power amplifier is generally used for home playback, and its characteristics are that the sound quality is delicate and soft, the appearance is more delicate and beautiful, the sound pressure level of the sound is not too high, and the power to be received is small. Professional amplifiers are generally used in professional entertainment venues such as dance halls, karaoke halls, Beijing theaters, auditoriums and sports venues. The general professional power amplifier has high sensitivity, good strength and high power consumption. Compared with the home power amplifier, its sound quality is hard and the appearance is not very delicate.

Second: The material configuration is different. Professional power amplifiers generally need to work in a high-power state for a long time, so professional power amplifiers require large power headroom, high reliability, small temperature rise at the output stage, and good circuit stability. In order to meet such requirements, amplifiers have special considerations in design, materials, etc. that are different from home amplifiers.

Third: From the point of view of function setting, professional power machines often work with preamplifiers such as mixers, so they are mostly pure post-stage amplifiers. The setting of professional amplifier amplifiers is very simple, often only the power switch and output level adjustment potentiometer (or step attenuator) on the panel. However, due to the actual needs of professional power amplifiers, it is often possible to work in a two-channel state, or to become a mono amplifier after "bridging", so the professional power amplifier is often provided with a "bridge" switch. There are many models of home amplifiers that are "combined" amplifiers with preamplifiers. These combined amplifiers have many functions, often with audio source selection, monotonic control, and multiple audio input interfaces.

The above is today's sharing with you the difference between professional power amplifiers and home power amplifiers. If you are searching for the professional power amplifier, you can try about ev 7300 amplifier


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