Nominal power handling

The nominal power handling of a loudspeaker, measured in watts (W), is an indicator of the amount of electrical energy the loudspeaker can take during long-term use. It is determined by applying a defined noise signal. This noise signal is supposed to simulate a typical programme of music. Typically the higher frequencies are much weaker than the low ones. As a result, tweeters measured using this standard are only used at approx. 10% of their maximum output. The peak power handling figure does not mean that it is possible, for example, to subject a woofer to a sine wave signal at 20 Hz and the rated output and that the woofer will not be physically damaged. Especially with subwoofers and in car hifi, it is essential to exercise great care. Musicians' loudspeakers are subject to far tougher conditions. Here, there is no difference between the rating of the power-handling capabilities of woofers and tweeters. In these cases, the nominal load capacity is used, which is the output the driver can withstand in reality.