功放与扬声器的匹配(国外英文资料).docVIP

功放与扬声器的匹配(国外英文资料) Talking about the matching of power amplifier and loudspeaker box, there are many arguments. The production of power company, power amplifier must be greater than the speaker power, this power amplifier has redundant power reserve, sound nicely; speaker manufacturers said that the best speaker power to a large point, so that speakers can have a larger bearing power, if the system back, so as not to damage the speakers. Consumers dont know what to do If we are fully speaking of the theoretical concept, the speaker rated capacity is the same as the rated output power of the amplifier. This is like baby milk, much less spit will cry, just live in peace. Its nothing special, but it seems simple, but there are a lot of hidden secrets inside. First of all, what is the rated power of the speaker? The instructions read: 8 euro, 150WRMS. Excuse me, what does this stand for? For a 2 frequency loudspeaker box, it means that the speaker can withstand the power rating of the 150W output from the power amplifier. Now, lets go a step further and see how this 150WRMS is assigned Because the 2 frequency, we assume that there is a 15 inch woofer, another 1 Inch Drive treble, whether it is 150/2, which is 15 inch 75WRMS 1 inch bass bear, treble driver bear 75WRMS, or someone that is 15 inch 150WRMS 1 inch tweeter bear, is also under 150WRMS, obviously these are not correct. Lets move away from the subject. Why do we need 2 points? 2 tone to the audio range effectively divided into 2 bands, because the signal by single speakers voice can not cover the whole audio (in certain sound pressure fan, for example) we usually know the crossover point 1.2KHz, it is represented by the bass unit from 20Hz-1.2KHz (15 inch) to sound, with the tweeter 1.2KHz-20KHz (1 inch tweeter drive) to sound, that now speaker has playing pop music, we simply say BASS is from the 15 inch bass bass and treble, triangle is from the 1 inch drive out, and now we may have seen that power 15 inch bas