这篇文章的一部分Power ManagementSeries:瓦特，RMS等有什么区别？
In the consumer electronics world, you will often hear about watts, power handling, and power output. The terms are used interchangeably to refer to two values, that is, root mean square (RMS) and peak power rating. Power rating is among the essential factors that contribute to an ideal sound system. It is, therefore, important to know what these two values refer to whether you’re searching for speakers, amplifiers, or subwoofers.
当希望建立高性能娱乐系统时，大多数人倾向于根据具有最高功率评级的音频和声音设备购买音频和声音设备。但是，对于不了解RMS和Peak Watts之间差异的初学者来说，这可能很难。另外，有些人可能会选择忽略评分并获得品牌，但这会以一种或另一种方式影响最终结果。
So, if you’re going to spend your hard cash on a surround-sound speaker, subwoofer, or even an amplifier, you'll need to have basic信息权力ratings。This comprehensive guide will help you understand these two values to assist in you assembling a decent sound system.
RMS Watts Explained
根平方或简单的RMS瓦是指扬声器或低音炮的连续电源处理或放大器可以输出多少连续功率。RMS值通常低于峰值等级，但它们代表了一个单元真正能够处理的内容。将RMS功率视为扬声器每天可以处理的平均力量，而不会损害声音质量或经历任何失真。
Peak Watts Explained
峰值处理是扬声器或低音炮可以在短时间内处理的最高功率水平，而不会吹吹。放大器与他们在失败之前可以发出的绝对最高功率相同，也不会导致失真。
我们可以将峰值瓦特视为您汽车速度表上方的数量。例如，您可以开车约180公里/小时，但是如果不对汽车造成机械或热损坏，则不能长时间维持这种速度。以同样的方式，峰值功率水平只能保持一秒钟的一小部分，尽管没有明确的定义多长时间。
如果设备受到恒定的峰值功率，则电线可能过热，这可能会迅速损坏语音线圈。
RMS Power vs. Peak Power
购物时，您会注意到，一些制造商使用峰值瓦特等级或RMS额定值对产品的电力处理能力进行评分，而大多数都使用两个值。例如，一个单元的额定值为150 W，而另一个品牌的宣传为75W。
At first glance, one might be tempted to think that the former is better because it’s rated at a higher power level than the latter. However, upon a closer look, you may notice that the first product is rated for peak watts while the second one is advertising RMS watts. Typically, a unit’s peak power handling is double the RMS power handling, which basically means that the above products are actually rated the same: 150 W peak/75 W RMS.
不过，大多数音频设备制造商都更喜欢对峰值功率等级的压力更大，以使产品看起来像是能够提供的功率超出了能力。虽然这听起来令人信服，但利用峰值功率不仅会打扰您的邻居，而且使您的音响设备的价值贬值，要求您更换某些零件或完全购买新的单位。因此，如果您想让演讲者持续多年，那么要注意的数字是RMS瓦数，您应该欣赏音乐的功率输入。
However, when it comes to these technical details, don't get confused by speaker power ratings and amplifier specifications. Amplifiers generate power in an audio system, which is not the case with speakers and subwoofers. Therefore, speaker power ratings refer to the amount of power your speakers can handle from an amplifier. The specifications on the amp, on the other hand, refer to how much power it can produce for maximum audio performance.
Conclusion
RMS和Peak Watts在您的音响系统中都起着重要作用，在将扬声器与放大器或低音炮进行比较时，它们至关重要。将扬声器或低音炮与放大器匹配时，您应该比较两个RMS值或两个峰值等级。
Therefore, one should not get confused when comparing peak and RMS ratings. This will ensure that you'll get the best out of each component. If the power outputs aren’t correctly matched, the components can overheat and create a couple of other issues. However, it’s important to stress that you should always use RMS ratings—not peak wattage—when matching and comparing gear.
从Power ManagementSeries:瓦特，RMS等有什么区别？
大卫·福斯特（David M. Foster）是内容的负责人扬声器。
