I believe many audio enthusiasts have seen power amplifier for professional and home audio amplifier circuit diagram. If only from a schematic view, professional power amplifier and power amplifier for home not seem to be any significant differences. From use, both of which are used to drive the speaker playback, which seems to be the same. In terms of performance indicators, basic performance indicators of household power amplifier and power amplifier is much the same. In fact, professional power amplifier and power amplifier for home there are a lot of differences.9yiservice manual download site
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Professional power amplifiers are usually requires long, continuous work on power state, the amplifier requires power headroom, reliability is high, the output temperature is smaller and better stability. To meet such expectations, amplifier in terms of design, materials, manufacturing, and other special consideration are different from home amplifiers. For example, Dianyuan power circuit of the amplifier volume tends to be based on actual consumption of amplifiers, plus plenty of rich content, so much larger than the household of the same nominal power capacity of the amplifier. Professional power amplifier power devices are also often choose the maximum current and voltage is higher than the rating for more specs, radiators for the output stage also uses a large exposed radiator, in order to facilitate heat dissipation when you work long hours, and guarantee the temperature rise is low. If we look at the rated output power is also 100Wx2 professional power amplifier and power amplifier for home, you can find professional power amplifier heat sink is much greater. This is because a home amplifier is rated at a nominal output power was 100W, but tend to work only in the actual use in smaller output power status (generally about 10W average power). Only singing some music that sudden peak signal, can only be achieved in a short time dozens of Watts of output power. So home amplifier output stage of the actual work load is lighter. Rated output power was 100W amplifier, often in actual use, we often will reach close to "full power" status, actual workload is heavy, therefore output stage fever is also more powerful requires a larger radiator for good heat dissipation.

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